{"id":1264,"date":"2006-11-17T23:55:00","date_gmt":"2006-11-17T21:55:00","guid":{"rendered":"http:\/\/sairanen.org\/wordpress\/2006\/11\/false-true.html"},"modified":"2006-11-17T23:55:00","modified_gmt":"2006-11-17T21:55:00","slug":"false-true","status":"publish","type":"post","link":"https:\/\/www.sairanen.org\/wordpress\/2006\/11\/17\/false-true\/","title":{"rendered":"false =&gt; true"},"content":{"rendered":"<blockquote><p>Bertrand Russell, in a lecture on logic, mentioned that in the sense of material implication, a false proposition implies any proposition. A student raised his hand and said &#8220;In that case, given that 1 = 0, prove that you are the Pope&#8221;. Russell immediately replied, &#8220;Add 1 to both sides of the equation: then we have 2 = 1. The set containing just me and the Pope has 2 members. But 2 = 1, so it has only 1 member; therefore, I am the Pope.&#8221;\n<\/p><\/blockquote>\n<p>T\u00f6rm\u00e4sin t\u00e4llaiseen tarinaan netti selaillessa eilen ep\u00e4onnisen pokerip\u00e4iv\u00e4n j\u00e4lkeen. Niin hyv\u00e4 juttu ett\u00e4 oli pakko jakaa se.<\/p>\n<p>Matematiikassa tulee usein eteen asioita, jotka tuntuvat v\u00e4\u00e4rilt\u00e4 aluksi. Esimerkkin\u00e4 vaikkapa exp(i*pi) = -1 tai juuri tuo ylh\u00e4\u00e4ll\u00e4 olevan lainauksen yksisuuntaisen implikaation ominaisuus. Kummatkin tuntuvat eritt\u00e4in kummalliselta aluksi, mutta tarpeeksi niit\u00e4 k\u00e4ytetty\u00e4\u00e4n niihin tottuu ja niit\u00e4 alkaa pit\u00e4\u00e4 totena.<\/p>\n<p>Rupesin <a href=\"http:\/\/rikumerikoski.net\/\">Riku Merikosken<\/a> vaalip\u00e4\u00e4llik\u00f6ksi. Olen innostunut t\u00e4st\u00e4 urakasta, mutta olen aavistuksen hermostunut koulut\u00f6ideni sujumisesta.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Bertrand Russell, in a lecture on logic, mentioned that in the sense of material implication, a false proposition implies any proposition. A student raised his hand and said &#8220;In that case, given that 1 = 0, prove that you are the Pope&#8221;. Russell immediately replied, &#8220;Add 1 to both sides of the equation: then we [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[120,125],"tags":[],"class_list":["post-1264","post","type-post","status-publish","format-standard","hentry","category-matematiikka","category-mina"],"_links":{"self":[{"href":"https:\/\/www.sairanen.org\/wordpress\/wp-json\/wp\/v2\/posts\/1264","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sairanen.org\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sairanen.org\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sairanen.org\/wordpress\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sairanen.org\/wordpress\/wp-json\/wp\/v2\/comments?post=1264"}],"version-history":[{"count":0,"href":"https:\/\/www.sairanen.org\/wordpress\/wp-json\/wp\/v2\/posts\/1264\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.sairanen.org\/wordpress\/wp-json\/wp\/v2\/media?parent=1264"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sairanen.org\/wordpress\/wp-json\/wp\/v2\/categories?post=1264"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sairanen.org\/wordpress\/wp-json\/wp\/v2\/tags?post=1264"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}