http://72.14.177.54/logic/?action=history&feed=atom&title=Material_implication 2026-06-14T15:27:38Z Revision history for this page on the wiki MediaWiki 1.15.1 http://72.14.177.54/logic/?title=Material_implication&diff=1471&oldid=prev 2007-06-19T05:06:42Z

<p></p> <p><b>New page</b></p><div>Two statements are said to be ''materially equivalent'', ''or equivalent in truth value'' when their truth values cannot be the negation of each other: i.e. they must both be true or both be false. We can read material equivalence as ''p if and only if q''. <br /> <br /> ==References==<br /> <br /> * Copi, I. M, Cohen, C., (2001), &quot;Introduction to Logic&quot;, 11th Edition.</div>

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