{"version":"1.0","provider_name":"Daniel R. Schlegel","provider_url":"https:\/\/danielschlegel.org\/wp","author_name":"digitalneoplasm","author_url":"https:\/\/danielschlegel.org\/wp\/author\/digitalneoplasm\/","title":"Be-Fitched! - Daniel R. Schlegel","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"jetdMAuTOJ\"><a href=\"https:\/\/danielschlegel.org\/wp\/be-fitched\/\">Be-Fitched!<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/danielschlegel.org\/wp\/be-fitched\/embed\/#?secret=jetdMAuTOJ\" width=\"600\" height=\"338\" title=\"&#8220;Be-Fitched!&#8221; &#8212; Daniel R. Schlegel\" data-secret=\"jetdMAuTOJ\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/danielschlegel.org\/wp\/wp-includes\/js\/wp-embed.min.js\n\/* ]]> *\/\n<\/script>\n","description":"The following appeared at http:\/\/logic.stanford.edu\/intrologic\/secondary\/extras\/fitch.html, but is no longer available. It is replicated below from the version found on archive.org. Introduction to Logic Be-Fitched Constructing proofs using the Fitch system can often be hard and unintuitive, especially for those who encounter it for the first time. We have identified the following guidelines which are based on the properties of the&hellip;Read more"}