{"id":44519,"date":"2019-12-14T20:38:12","date_gmt":"2019-12-14T18:38:12","guid":{"rendered":"https:\/\/omathimatikos.gr\/?p=44519"},"modified":"2020-02-12T16:37:19","modified_gmt":"2020-02-12T14:37:19","slug":"%cf%83%ce%b1%ce%bd-%cf%83%ce%ae%ce%bc%ce%b5%cf%81%ce%b1-%cf%83%cf%84%ce%bf-%ce%bc%ce%b1%ce%b8%ce%b7%ce%bc%ce%b1%cf%84%ce%b9%ce%ba%cf%8c-%cf%83%cf%8d%ce%bc%cf%80%ce%b1%ce%bd-%cf%84%ce%bf-1887","status":"publish","type":"post","link":"https:\/\/omathimatikos.gr\/?p=44519","title":{"rendered":"\u03a3\u03b1\u03bd \u03c3\u03ae\u03bc\u03b5\u03c1\u03b1 \u03c3\u03c4\u03bf \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03c3\u03cd\u03bc\u03c0\u03b1\u03bd\u2026 \u03a4\u03bf 1887 \u03b3\u03b5\u03bd\u03bd\u03b9\u03ad\u03c4\u03b1\u03b9 \u03bf \u039f\u03cd\u03b3\u03b3\u03c1\u03bf\u03c2 G.Polya"},"content":{"rendered":"<p><!--more--><\/p>\n<div id=\"js_10\" class=\"_5pbx userContent _3576\" data-testid=\"post_message\" data-ft=\"{&quot;tn&quot;:&quot;K&quot;}\">\n<blockquote>\n<h3>\u03a4\u03bf 1887,\u00a0 \u03b3\u03b5\u03bd\u03bd\u03b9\u03ad\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b7\u03bd \u0392\u03bf\u03c5\u03b4\u03b1\u03c0\u03ad\u03c3\u03c4\u03b7 ,\u03bf \u039f\u03cd\u03b3\u03b3\u03c1\u03bf\u03c2 G.Polya.\u039a\u03b1\u03b8\u03b7\u03b3\u03b7\u03c4\u03ae\u03c2 \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ce\u03bd \u03c3\u03c4\u03bf \u03c0\u03b1\u03bd\u03b5\u03c0\u03b9\u03c3\u03c4\u03ae\u03bc\u03b9\u03bf \u03c4\u03bf\u03c5 \u03a3\u03c4\u03b1\u03bd\u03c6\u03bf\u03c1\u03bd\u03c4.<\/h3>\n<\/blockquote>\n<p>\u03a0\u03bf\u03bb\u03c5\u03c3\u03c7\u03b9\u03b4\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03b5\u03bd\u03b4\u03b9\u03b1\u03c6\u03ad\u03c1\u03bf\u03c5\u03c3\u03b1 \u03c0\u03c1\u03bf\u03c3\u03c9\u03c0\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1. \u039d\u03ad\u03bf\u03c2 \u03be\u03b5\u03ba\u03af\u03bd\u03b7\u03c3\u03b5 \u03c0\u03b1\u03bd\u03b5\u03c0\u03b9\u03c3\u03c4\u03b7\u03bc\u03b9\u03b1\u03ba\u03ad\u03c2 \u03c3\u03c0\u03bf\u03c5\u03b4\u03ad\u03c2 \u03c3\u03c4\u03b1 \u03bd\u03bf\u03bc\u03b9\u03ba\u03ac,\u03b1\u03bb\u03bb\u03ac \u03c3\u03cd\u03bd\u03c4\u03bf\u03bc\u03b1 \u03c3\u03c4\u03c1\u03ac\u03c6\u03b7\u03ba\u03b5 \u03c3\u03c4\u03b9\u03c2 \u03b3\u03bb\u03ce\u03c3\u03c3\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c4\u03b7\u03bd \u03c6\u03b9\u03bb\u03bf\u03bb\u03bf\u03b3\u03af\u03b1.<\/p>\n<p>\u03a3\u03c4\u03b7\u03bd \u03c3\u03c5\u03bd\u03ad\u03c7\u03b5\u03b9\u03b1 \u03c0\u03c1\u03bf\u03ba\u03b5\u03b9\u03bc\u03ad\u03bd\u03bf\u03c5 \u03bd\u03b1 \u03ba\u03b1\u03c4\u03b1\u03bd\u03bf\u03ae\u03c3\u03b5\u03b9 \u03c4\u03b7\u03bd \u03c6\u03b9\u03bb\u03bf\u03c3\u03bf\u03c6\u03af\u03b1, \u03b1 \u03c0\u03bf\u03c6\u03ac\u03c3\u03b9\u03c3\u03b5 \u03bd\u03b1 \u03c3\u03c0\u03bf\u03c5\u03b4\u03ac\u03c3\u03b5\u03b9 \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ac. \u0388\u03ba\u03b1\u03bd\u03b5 \u03c4\u03bf \u03b4\u03b9\u03b4\u03b1\u03ba\u03c4\u03bf\u03c1\u03b9\u03ba\u03cc \u03c4\u03bf\u03c5 \u03c3\u03c4\u03bf \u03c0\u03b1\u03bd\u03b5\u03c0\u03b9\u03c3\u03c4\u03ae\u03bc\u03b9\u03bf \u03c4\u03b7\u03c2 \u0392\u03bf\u03c5\u03b4\u03b1\u03c0\u03ad\u03c3\u03c4\u03b7\u03c2.<\/p>\n<p>\u0394\u03b7\u03bc\u03bf\u03c3\u03af\u03b5\u03c5\u03c3\u03b5 \u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b5\u03c2 \u03c3\u03c4\u03b7\u03bd \u03b8\u03b5\u03c9\u03c1\u03af\u03b1 \u03b1\u03c1\u03b9\u03b8\u03bc\u03ce\u03bd,\u03c4\u03b7\u03bd \u03b3\u03b5\u03c9\u03bc\u03b5\u03c4\u03c1\u03af\u03b1,\u03c4\u03b7\u03bd \u03b1\u03bd\u03ac\u03bb\u03c5\u03c3\u03b7,\u03c4\u03b9\u03c2 \u03c0\u03b9\u03b8\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2,\u03c4\u03b7\u03bd \u03c3\u03c5\u03bd\u03b4\u03c5\u03b1\u03c3\u03c4\u03b9\u03ba\u03ae.\u0395\u03be\u03b1\u03b9\u03c4\u03af\u03b1\u03c2 \u03c4\u03b7\u03c2 \u03c0\u03bf\u03bb\u03b9\u03c4\u03b9\u03ba\u03ae\u03c2 \u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2 \u03c3\u03c4\u03b7\u03bd \u0395\u03c5\u03c1\u03ce\u03c0\u03b7 \u03bc\u03b5\u03c4\u03b1\u03bd\u03ac\u03c3\u03c4\u03b5\u03c5\u03c3\u03b5 \u03c3\u03c4\u03b7\u03bd \u0391\u03bc\u03b5\u03c1\u03b9\u03ba\u03ae \u03ba\u03b1\u03b9 \u03ba\u03b1\u03c4\u03ad\u03bb\u03b7\u03be\u03b5 \u03c3\u03c4\u03bf\u03bd \u03a3\u03c4\u03ac\u03bd\u03c6\u03bf\u03c1\u03bd\u03c4.<\/p>\n<p>\u03a0\u03ac\u03bd\u03c9 \u03ba\u03b1\u03b9 \u03c0\u03ad\u03c1\u03b1 \u03b1\u03c0\u03cc \u03cc\u03bb\u03b1 \u03cc\u03bc\u03c9\u03c2 \u03ae\u03c4\u03b1\u03bd \u03b4\u03ac\u03c3\u03ba\u03b1\u03bb\u03bf\u03c2 \u03c4\u03c9\u03bd \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ce\u03bd.<\/p>\n<p>\u039f\u03b9 \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03bf\u03af \u03ba\u03b1\u03b9 \u03cc\u03c3\u03bf\u03b9 \u03b4\u03b9\u03b4\u03ac\u03c3\u03ba\u03bf\u03c5\u03bd \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ac \u03c4\u03bf\u03bd \u03b3\u03bd\u03c9\u03c1\u03af\u03b6\u03bf\u03c5\u03bd \u03b1\u03c0\u03cc \u03c4\u03bf \u03b4\u03b9\u03b1\u03bc\u03ac\u03bd\u03c4\u03b9 \u03b5\u03c5\u03c1\u03b5\u03c4\u03b9\u03ba\u03ae\u03c2 \u03c0\u03bf\u03c5 \u03ad\u03b3\u03c1\u03b1\u03c8\u03b5 \u03c4\u03bf 1945 \u03bc\u03b5 \u03c4\u03af\u03c4\u03bb\u03bf &#8220;\u03a0\u03ce\u03c2 \u03bd\u03b1 \u03c4\u03bf \u03bb\u03cd\u03c3\u03c9&#8221;.<\/p>\n<p>\u03a4\u03bf \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03bf \u03b2\u03b9\u03b2\u03bb\u03af\u03bf \u03bc\u03b5\u03c4\u03b1\u03c6\u03c1\u03ac\u03c3\u03c4\u03b7\u03ba\u03b5 \u03c3\u03b5 \u03b4\u03b5\u03ba\u03b1\u03b5\u03c0\u03c4\u03ac \u03b3\u03bb\u03ce\u03c3\u03c3\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03c0\u03bf\u03cd\u03bb\u03b7\u03c3\u03b5 \u03c0\u03ac\u03bd\u03c9 \u03b1\u03c0\u03cc \u03ad\u03bd\u03b1 \u03b5\u03ba\u03b1\u03c4\u03bf\u03bc\u03bc\u03cd\u03c1\u03b9\u03bf \u03b1\u03bd\u03c4\u03af\u03c4\u03c5\u03c0\u03b1.<\/p>\n<p>\u0391\u03bd \u03b4\u03b5\u03bd \u03c4\u03bf \u03ad\u03c7\u03b5\u03c4\u03b5 \u03ba\u03b1\u03b9 \u03b5\u03bd\u03b4\u03b9\u03b1\u03c6\u03ad\u03c1\u03b5\u03c3\u03c4\u03b5 \u03b3\u03b9\u03b1 \u03c4\u03b1 \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ac \u03ae \u03c4\u03b7\u03bd \u03b4\u03b9\u03b4\u03b1\u03c3\u03ba\u03b1\u03bb\u03af\u03b1 \u03c4\u03bf\u03c5\u03c2 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c4\u03bf \u03b1\u03c0\u03bf\u03ba\u03c4\u03ae\u03c3\u03b5\u03c4\u03b5 \u2026.(<a href=\"https:\/\/www.scribd.com\/document\/232761463\/Gyorgy-Polya-%CE%A0%CF%89%CF%82-%CE%9D%CE%B1-%CE%A4%CE%BF-%CE%9B%CF%8D%CF%83%CF%89?fbclid=IwAR1K20Jdo0b8ghoGgtJyLgat_9eQAZEDiBsZ097AFguxlw4L_v-09DNg12A\" target=\"_blank\" rel=\"noopener nofollow noreferrer\" data-ft=\"{&quot;tn&quot;:&quot;-U&quot;}\" data-lynx-mode=\"async\" data-lynx-uri=\"https:\/\/l.facebook.com\/l.php?u=https%3A%2F%2Fwww.scribd.com%2Fdocument%2F232761463%2FGyorgy-Polya-%25CE%25A0%25CF%2589%25CF%2582-%25CE%259D%25CE%25B1-%25CE%25A4%25CE%25BF-%25CE%259B%25CF%258D%25CF%2583%25CF%2589%3Ffbclid%3DIwAR1K20Jdo0b8ghoGgtJyLgat_9eQAZEDiBsZ097AFguxlw4L_v-09DNg12A&amp;h=AT0K5-patQGnoKgc5DDGdEt08e9ir7oMwaTPbS-PIxyAv8vX_FLSBOW4yoAegX90sEd1dqtpVdl_f7_XCJUoMywxeonw-I-d3GQoS_R1YAPB9OM8aw869j6ZXXm-a9C_4GffxwKbHbsbT5NIJ2CSMgTNvtwXgiZj4doDHVkPVqhuL5KA47QrhXO81g3NwIPTVoMT38hw__s5KRx4Sd3o_L8WMxpR9MGUQbdgDW0GQrCRUtuokY21TRcyWGzpdBdiDVJek_QAs6Rg3VQ5wYyqrziBvasSmA3GGQcNuCo98XgN9L3_rCxkaU1xsgXqKvCqrQLrbK2vgd_ke_ey6sTkrNqfK9t-DrGxeB7nMauIUqgo2xl7FKrfWLtUhNZZq13BXlljtWtjNk_VvjIyZWYVVYwrsMafWo2a2GpH4Vu16c-kSYC2ZLkYVgDJyQ-8TDwPw3B2vGZ7E5vvMHD5qJHBvViJHRvP2c47wBDB5hqjdGN1KfGoCukl-U5RqFzogwNibVUCd1-59LMekKM9QLrePfd_08pkfD6AI_vQIUJdsPDp1qBaMToJdL3Y4k9uFzQNmKCR5ihRPeaaQTMsgjeCEnmOXVUPov0meZaeX4KyNSAIcMLXJApICD4ph99dPHoKtkNs\">https:\/\/www.scribd.com\/\u2026\/Gyorgy-Polya-%CE%A0%CF%89%CF%82-%C\u2026<\/a>)\u00a0<span class=\"_47e3 _5mfr\" title=\"emoticon smile\"><img decoding=\"async\" loading=\"lazy\" class=\"img\" role=\"presentation\" src=\"https:\/\/static.xx.fbcdn.net\/images\/emoji.php\/v9\/f4c\/1\/16\/1f642.png\" alt=\"\" width=\"16\" height=\"16\" \/><span class=\"_7oe\" aria-hidden=\"true\">\ud83d\ude42<\/span><\/span><br \/>\n\u00ab\u0391\u03bd \u03b4\u03b5\u03bd \u03bc\u03c0\u03bf\u03c1\u03b5\u03af\u03c2 \u03bd\u03b1 \u03bb\u03cd\u03c3\u03b5\u03b9\u03c2 \u03ad\u03bd\u03b1 \u03c0\u03c1\u03cc\u03b2\u03bb\u03b7\u03bc\u03b1,\u03c4\u03cc\u03c4\u03b5 \u03c3\u03af\u03b3\u03bf\u03c5\u03c1\u03b1 \u03c5\u03c0\u03ac\u03c1\u03c7\u03b5\u03b9 \u03ba\u03ac\u03c0\u03bf\u03b9\u03bf \u03b5\u03c5\u03ba\u03bf\u03bb\u03cc\u03c4\u03b5\u03c1\u03bf \u03c0\u03bf\u03c5 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af\u03c2 \u03bd\u03b1 \u03bb\u03cd\u03c3\u03b5\u03b9\u03c2: \u03b1\u03bd\u03b1\u03ba\u03ac\u03bb\u03c5\u03c8\u03b5 \u03c4\u03bf.\u00bb<\/p>\n<\/div>\n<div class=\"_3x-2\" data-ft=\"{&quot;tn&quot;:&quot;H&quot;}\">\n<div data-ft=\"{&quot;tn&quot;:&quot;H&quot;}\">\n<div class=\"mtm\">\n<div>\n<div class=\"_5cq3 _1ktf\" data-ft=\"{&quot;tn&quot;:&quot;E&quot;}\">\n<div id=\"u_0_1g\" class=\"uiScaledImageContainer _4-ep\"><img decoding=\"async\" loading=\"lazy\" class=\"scaledImageFitWidth img\" src=\"https:\/\/scontent.fath2-1.fna.fbcdn.net\/v\/t1.0-0\/p526x296\/79806490_2307133666059622_740280743527186432_n.jpg?_nc_cat=110&amp;_nc_ohc=UIUQXSin2rQAQlQ5RgBz3hGAngKmXbdadGzNm3VSbk8Ckcd04YinT5AhQ&amp;_nc_ht=scontent.fath2-1.fna&amp;oh=9f1dd026f0c750bed6526ff8ecfbbfdb&amp;oe=5EB09F97\" alt=\"\u0397 \u03b5\u03b9\u03ba\u03cc\u03bd\u03b1 \u03af\u03c3\u03c9\u03c2 \u03c0\u03b5\u03c1\u03b9\u03ad\u03c7\u03b5\u03b9: 1 \u03ac\u03c4\u03bf\u03bc\u03bf, \u03ba\u03b5\u03af\u03bc\u03b5\u03bd\u03bf\" width=\"500\" height=\"496\" data-src=\"https:\/\/scontent.fath2-1.fna.fbcdn.net\/v\/t1.0-0\/p526x296\/79806490_2307133666059622_740280743527186432_n.jpg?_nc_cat=110&amp;_nc_ohc=UIUQXSin2rQAQlQ5RgBz3hGAngKmXbdadGzNm3VSbk8Ckcd04YinT5AhQ&amp;_nc_ht=scontent.fath2-1.fna&amp;oh=9f1dd026f0c750bed6526ff8ecfbbfdb&amp;oe=5EB09F97\" \/><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><!--more--><a style=\"color: #494949;\" href=\"https:\/\/www.facebook.com\/166062273500116\/posts\/2307138116059177\/\">\u03c0\u03b7\u03b3\u03ae<\/a><\/p>\n<!-- WP Attachments -->\r\n        <div style=\"width:100%;margin:10px 0 10px 0;\">\r\n            <h3>Attachments<\/h3>\r\n        <ul class=\"post-attachments\"><li class=\"post-attachment mime-image-jpeg\"><a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/omathimatikos.gr\/?p=44519&#038;download=44520\">polya<\/a> <small>(37 kB)<\/small><\/li><\/ul><\/div>","protected":false},"excerpt":{"rendered":"<p>Attachments polya (37 kB)<\/p>\n","protected":false},"author":2,"featured_media":44520,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"footnotes":"","_jetpack_memberships_contains_paid_content":false,"jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[33],"tags":[],"jetpack_publicize_connections":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u03a3\u03b1\u03bd \u03c3\u03ae\u03bc\u03b5\u03c1\u03b1 \u03c3\u03c4\u03bf \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03c3\u03cd\u03bc\u03c0\u03b1\u03bd\u2026 \u03a4\u03bf 1887 \u03b3\u03b5\u03bd\u03bd\u03b9\u03ad\u03c4\u03b1\u03b9 \u03bf \u039f\u03cd\u03b3\u03b3\u03c1\u03bf\u03c2 G.Polya &#8211; \u039f \u039c\u0391\u0398\u0397\u039c\u0391\u03a4\u0399\u039a\u039f\u03a3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/omathimatikos.gr\/?p=44519\" \/>\n<meta property=\"og:locale\" content=\"el_GR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u03a3\u03b1\u03bd \u03c3\u03ae\u03bc\u03b5\u03c1\u03b1 \u03c3\u03c4\u03bf \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03c3\u03cd\u03bc\u03c0\u03b1\u03bd\u2026 \u03a4\u03bf 1887 \u03b3\u03b5\u03bd\u03bd\u03b9\u03ad\u03c4\u03b1\u03b9 \u03bf \u039f\u03cd\u03b3\u03b3\u03c1\u03bf\u03c2 G.Polya &#8211; \u039f \u039c\u0391\u0398\u0397\u039c\u0391\u03a4\u0399\u039a\u039f\u03a3\" \/>\n<meta property=\"og:description\" content=\"Attachments polya (37 kB)\" \/>\n<meta property=\"og:url\" content=\"https:\/\/omathimatikos.gr\/?p=44519\" \/>\n<meta property=\"og:site_name\" content=\"\u039f \u039c\u0391\u0398\u0397\u039c\u0391\u03a4\u0399\u039a\u039f\u03a3\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/omathimatikos\/\" \/>\n<meta property=\"article:published_time\" content=\"2019-12-14T18:38:12+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2020-02-12T14:37:19+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/i0.wp.com\/omathimatikos.gr\/wp-content\/uploads\/2019\/12\/polya.jpeg?fit=500%2C338&ssl=1\" \/>\n\t<meta property=\"og:image:width\" content=\"500\" \/>\n\t<meta property=\"og:image:height\" content=\"338\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"...\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u03a3\u03c5\u03bd\u03c4\u03ac\u03c7\u03b8\u03b7\u03ba\u03b5 \u03b1\u03c0\u03cc\" \/>\n\t<meta name=\"twitter:data1\" content=\"...\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/omathimatikos.gr\/?p=44519#article\",\"isPartOf\":{\"@id\":\"https:\/\/omathimatikos.gr\/?p=44519\"},\"author\":{\"name\":\"...\",\"@id\":\"https:\/\/omathimatikos.gr\/#\/schema\/person\/f06b5f15d628d878ee88431b07152cbe\"},\"headline\":\"\u03a3\u03b1\u03bd \u03c3\u03ae\u03bc\u03b5\u03c1\u03b1 \u03c3\u03c4\u03bf \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03c3\u03cd\u03bc\u03c0\u03b1\u03bd\u2026 \u03a4\u03bf 1887 \u03b3\u03b5\u03bd\u03bd\u03b9\u03ad\u03c4\u03b1\u03b9 \u03bf \u039f\u03cd\u03b3\u03b3\u03c1\u03bf\u03c2 G.Polya\",\"datePublished\":\"2019-12-14T18:38:12+00:00\",\"dateModified\":\"2020-02-12T14:37:19+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/omathimatikos.gr\/?p=44519\"},\"wordCount\":15,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/omathimatikos.gr\/#organization\"},\"image\":{\"@id\":\"https:\/\/omathimatikos.gr\/?p=44519#primaryimage\"},\"thumbnailUrl\":\"https:\/\/i0.wp.com\/omathimatikos.gr\/wp-content\/uploads\/2019\/12\/polya.jpeg?fit=500%2C338&ssl=1\",\"articleSection\":[\"\u0395\u039d\u0394\u0399\u0391\u03a6\u0395\u03a1\u039f\u039d\u03a4\u0391\"],\"inLanguage\":\"el\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/omathimatikos.gr\/?p=44519#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/omathimatikos.gr\/?p=44519\",\"url\":\"https:\/\/omathimatikos.gr\/?p=44519\",\"name\":\"\u03a3\u03b1\u03bd \u03c3\u03ae\u03bc\u03b5\u03c1\u03b1 \u03c3\u03c4\u03bf \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03c3\u03cd\u03bc\u03c0\u03b1\u03bd\u2026 \u03a4\u03bf 1887 \u03b3\u03b5\u03bd\u03bd\u03b9\u03ad\u03c4\u03b1\u03b9 \u03bf \u039f\u03cd\u03b3\u03b3\u03c1\u03bf\u03c2 G.Polya &#8211; \u039f \u039c\u0391\u0398\u0397\u039c\u0391\u03a4\u0399\u039a\u039f\u03a3\",\"isPartOf\":{\"@id\":\"https:\/\/omathimatikos.gr\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/omathimatikos.gr\/?p=44519#primaryimage\"},\"image\":{\"@id\":\"https:\/\/omathimatikos.gr\/?p=44519#primaryimage\"},\"thumbnailUrl\":\"https:\/\/i0.wp.com\/omathimatikos.gr\/wp-content\/uploads\/2019\/12\/polya.jpeg?fit=500%2C338&ssl=1\",\"datePublished\":\"2019-12-14T18:38:12+00:00\",\"dateModified\":\"2020-02-12T14:37:19+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/omathimatikos.gr\/?p=44519#breadcrumb\"},\"inLanguage\":\"el\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/omathimatikos.gr\/?p=44519\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"el\",\"@id\":\"https:\/\/omathimatikos.gr\/?p=44519#primaryimage\",\"url\":\"https:\/\/i0.wp.com\/omathimatikos.gr\/wp-content\/uploads\/2019\/12\/polya.jpeg?fit=500%2C338&ssl=1\",\"contentUrl\":\"https:\/\/i0.wp.com\/omathimatikos.gr\/wp-content\/uploads\/2019\/12\/polya.jpeg?fit=500%2C338&ssl=1\",\"width\":500,\"height\":338},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/omathimatikos.gr\/?p=44519#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/omathimatikos.gr\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u03a3\u03b1\u03bd \u03c3\u03ae\u03bc\u03b5\u03c1\u03b1 \u03c3\u03c4\u03bf \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03c3\u03cd\u03bc\u03c0\u03b1\u03bd\u2026 \u03a4\u03bf 1887 \u03b3\u03b5\u03bd\u03bd\u03b9\u03ad\u03c4\u03b1\u03b9 \u03bf \u039f\u03cd\u03b3\u03b3\u03c1\u03bf\u03c2 G.Polya\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/omathimatikos.gr\/#website\",\"url\":\"https:\/\/omathimatikos.gr\/\",\"name\":\"\u039f \u039c\u0391\u0398\u0397\u039c\u0391\u03a4\u0399\u039a\u039f\u03a3\",\"description\":\"\u039a\u03ce\u03c3\u03c4\u03b1\u03c2 \u039c\u03c0\u03bf\u03c5\u03c1\u03b1\u03b6\u03ac\u03bd\u03b1\u03c2\",\"publisher\":{\"@id\":\"https:\/\/omathimatikos.gr\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/omathimatikos.gr\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"el\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/omathimatikos.gr\/#organization\",\"name\":\"\u039f \u039c\u0391\u0398\u0397\u039c\u0391\u03a4\u0399\u039a\u039f\u03a3\",\"url\":\"https:\/\/omathimatikos.gr\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"el\",\"@id\":\"https:\/\/omathimatikos.gr\/#\/schema\/logo\/image\/\",\"url\":\"\",\"contentUrl\":\"\",\"caption\":\" \u039f \u039c\u0391\u0398\u0397\u039c\u0391\u03a4\u0399\u039a\u039f\u03a3\"},\"image\":{\"@id\":\"https:\/\/omathimatikos.gr\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/omathimatikos\/\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/omathimatikos.gr\/#\/schema\/person\/f06b5f15d628d878ee88431b07152cbe\",\"name\":\"...\",\"sameAs\":[\"http:\/\/omathimatikos.gr\"],\"url\":\"https:\/\/omathimatikos.gr\/?author=2\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u03a3\u03b1\u03bd \u03c3\u03ae\u03bc\u03b5\u03c1\u03b1 \u03c3\u03c4\u03bf \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03c3\u03cd\u03bc\u03c0\u03b1\u03bd\u2026 \u03a4\u03bf 1887 \u03b3\u03b5\u03bd\u03bd\u03b9\u03ad\u03c4\u03b1\u03b9 \u03bf \u039f\u03cd\u03b3\u03b3\u03c1\u03bf\u03c2 G.Polya &#8211; \u039f \u039c\u0391\u0398\u0397\u039c\u0391\u03a4\u0399\u039a\u039f\u03a3","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/omathimatikos.gr\/?p=44519","og_locale":"el_GR","og_type":"article","og_title":"\u03a3\u03b1\u03bd \u03c3\u03ae\u03bc\u03b5\u03c1\u03b1 \u03c3\u03c4\u03bf \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03c3\u03cd\u03bc\u03c0\u03b1\u03bd\u2026 \u03a4\u03bf 1887 \u03b3\u03b5\u03bd\u03bd\u03b9\u03ad\u03c4\u03b1\u03b9 \u03bf \u039f\u03cd\u03b3\u03b3\u03c1\u03bf\u03c2 G.Polya &#8211; \u039f \u039c\u0391\u0398\u0397\u039c\u0391\u03a4\u0399\u039a\u039f\u03a3","og_description":"Attachments polya (37 kB)","og_url":"https:\/\/omathimatikos.gr\/?p=44519","og_site_name":"\u039f \u039c\u0391\u0398\u0397\u039c\u0391\u03a4\u0399\u039a\u039f\u03a3","article_publisher":"https:\/\/www.facebook.com\/omathimatikos\/","article_published_time":"2019-12-14T18:38:12+00:00","article_modified_time":"2020-02-12T14:37:19+00:00","og_image":[{"width":500,"height":338,"url":"https:\/\/i0.wp.com\/omathimatikos.gr\/wp-content\/uploads\/2019\/12\/polya.jpeg?fit=500%2C338&ssl=1","type":"image\/jpeg"}],"author":"...","twitter_card":"summary_large_image","twitter_misc":{"\u03a3\u03c5\u03bd\u03c4\u03ac\u03c7\u03b8\u03b7\u03ba\u03b5 \u03b1\u03c0\u03cc":"..."},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/omathimatikos.gr\/?p=44519#article","isPartOf":{"@id":"https:\/\/omathimatikos.gr\/?p=44519"},"author":{"name":"...","@id":"https:\/\/omathimatikos.gr\/#\/schema\/person\/f06b5f15d628d878ee88431b07152cbe"},"headline":"\u03a3\u03b1\u03bd \u03c3\u03ae\u03bc\u03b5\u03c1\u03b1 \u03c3\u03c4\u03bf \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03c3\u03cd\u03bc\u03c0\u03b1\u03bd\u2026 \u03a4\u03bf 1887 \u03b3\u03b5\u03bd\u03bd\u03b9\u03ad\u03c4\u03b1\u03b9 \u03bf \u039f\u03cd\u03b3\u03b3\u03c1\u03bf\u03c2 G.Polya","datePublished":"2019-12-14T18:38:12+00:00","dateModified":"2020-02-12T14:37:19+00:00","mainEntityOfPage":{"@id":"https:\/\/omathimatikos.gr\/?p=44519"},"wordCount":15,"commentCount":0,"publisher":{"@id":"https:\/\/omathimatikos.gr\/#organization"},"image":{"@id":"https:\/\/omathimatikos.gr\/?p=44519#primaryimage"},"thumbnailUrl":"https:\/\/i0.wp.com\/omathimatikos.gr\/wp-content\/uploads\/2019\/12\/polya.jpeg?fit=500%2C338&ssl=1","articleSection":["\u0395\u039d\u0394\u0399\u0391\u03a6\u0395\u03a1\u039f\u039d\u03a4\u0391"],"inLanguage":"el","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/omathimatikos.gr\/?p=44519#respond"]}]},{"@type":"WebPage","@id":"https:\/\/omathimatikos.gr\/?p=44519","url":"https:\/\/omathimatikos.gr\/?p=44519","name":"\u03a3\u03b1\u03bd \u03c3\u03ae\u03bc\u03b5\u03c1\u03b1 \u03c3\u03c4\u03bf \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03c3\u03cd\u03bc\u03c0\u03b1\u03bd\u2026 \u03a4\u03bf 1887 \u03b3\u03b5\u03bd\u03bd\u03b9\u03ad\u03c4\u03b1\u03b9 \u03bf \u039f\u03cd\u03b3\u03b3\u03c1\u03bf\u03c2 G.Polya &#8211; \u039f \u039c\u0391\u0398\u0397\u039c\u0391\u03a4\u0399\u039a\u039f\u03a3","isPartOf":{"@id":"https:\/\/omathimatikos.gr\/#website"},"primaryImageOfPage":{"@id":"https:\/\/omathimatikos.gr\/?p=44519#primaryimage"},"image":{"@id":"https:\/\/omathimatikos.gr\/?p=44519#primaryimage"},"thumbnailUrl":"https:\/\/i0.wp.com\/omathimatikos.gr\/wp-content\/uploads\/2019\/12\/polya.jpeg?fit=500%2C338&ssl=1","datePublished":"2019-12-14T18:38:12+00:00","dateModified":"2020-02-12T14:37:19+00:00","breadcrumb":{"@id":"https:\/\/omathimatikos.gr\/?p=44519#breadcrumb"},"inLanguage":"el","potentialAction":[{"@type":"ReadAction","target":["https:\/\/omathimatikos.gr\/?p=44519"]}]},{"@type":"ImageObject","inLanguage":"el","@id":"https:\/\/omathimatikos.gr\/?p=44519#primaryimage","url":"https:\/\/i0.wp.com\/omathimatikos.gr\/wp-content\/uploads\/2019\/12\/polya.jpeg?fit=500%2C338&ssl=1","contentUrl":"https:\/\/i0.wp.com\/omathimatikos.gr\/wp-content\/uploads\/2019\/12\/polya.jpeg?fit=500%2C338&ssl=1","width":500,"height":338},{"@type":"BreadcrumbList","@id":"https:\/\/omathimatikos.gr\/?p=44519#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/omathimatikos.gr\/"},{"@type":"ListItem","position":2,"name":"\u03a3\u03b1\u03bd \u03c3\u03ae\u03bc\u03b5\u03c1\u03b1 \u03c3\u03c4\u03bf \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03c3\u03cd\u03bc\u03c0\u03b1\u03bd\u2026 \u03a4\u03bf 1887 \u03b3\u03b5\u03bd\u03bd\u03b9\u03ad\u03c4\u03b1\u03b9 \u03bf \u039f\u03cd\u03b3\u03b3\u03c1\u03bf\u03c2 G.Polya"}]},{"@type":"WebSite","@id":"https:\/\/omathimatikos.gr\/#website","url":"https:\/\/omathimatikos.gr\/","name":"\u039f \u039c\u0391\u0398\u0397\u039c\u0391\u03a4\u0399\u039a\u039f\u03a3","description":"\u039a\u03ce\u03c3\u03c4\u03b1\u03c2 \u039c\u03c0\u03bf\u03c5\u03c1\u03b1\u03b6\u03ac\u03bd\u03b1\u03c2","publisher":{"@id":"https:\/\/omathimatikos.gr\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/omathimatikos.gr\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"el"},{"@type":"Organization","@id":"https:\/\/omathimatikos.gr\/#organization","name":"\u039f \u039c\u0391\u0398\u0397\u039c\u0391\u03a4\u0399\u039a\u039f\u03a3","url":"https:\/\/omathimatikos.gr\/","logo":{"@type":"ImageObject","inLanguage":"el","@id":"https:\/\/omathimatikos.gr\/#\/schema\/logo\/image\/","url":"","contentUrl":"","caption":" \u039f \u039c\u0391\u0398\u0397\u039c\u0391\u03a4\u0399\u039a\u039f\u03a3"},"image":{"@id":"https:\/\/omathimatikos.gr\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/omathimatikos\/"]},{"@type":"Person","@id":"https:\/\/omathimatikos.gr\/#\/schema\/person\/f06b5f15d628d878ee88431b07152cbe","name":"...","sameAs":["http:\/\/omathimatikos.gr"],"url":"https:\/\/omathimatikos.gr\/?author=2"}]}},"jetpack_featured_media_url":"https:\/\/i0.wp.com\/omathimatikos.gr\/wp-content\/uploads\/2019\/12\/polya.jpeg?fit=500%2C338&ssl=1","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/omathimatikos.gr\/index.php?rest_route=\/wp\/v2\/posts\/44519"}],"collection":[{"href":"https:\/\/omathimatikos.gr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/omathimatikos.gr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/omathimatikos.gr\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/omathimatikos.gr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=44519"}],"version-history":[{"count":1,"href":"https:\/\/omathimatikos.gr\/index.php?rest_route=\/wp\/v2\/posts\/44519\/revisions"}],"predecessor-version":[{"id":44521,"href":"https:\/\/omathimatikos.gr\/index.php?rest_route=\/wp\/v2\/posts\/44519\/revisions\/44521"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/omathimatikos.gr\/index.php?rest_route=\/wp\/v2\/media\/44520"}],"wp:attachment":[{"href":"https:\/\/omathimatikos.gr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=44519"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/omathimatikos.gr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=44519"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/omathimatikos.gr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=44519"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}