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<blockquote data-quote="Maxperson" data-source="post: 7774124" data-attributes="member: 23751">So I misspoke slightly.&nbsp; Not all schools of mathematical thought hold that the proof is universally valid.&nbsp; You are also using the proof incorrectly incorrectly here.&quot;Proof by contradiction is valid only under certain conditions. The main conditions are:- The problem can be described as a set of (usually two) mutually exclusive propositions;- These cases are demonstrably exhaustive, in the sense that no other possible proposition exists.Under these circumstances, if all but one of the cases are proven to be false, the remaining case must be true.&quot;I've shown you other propositions that exist and you keep dismissing them saying basically that you don't care about them, you only care about your two propositions.&nbsp; That makes your proof invalid.&nbsp; And of course you are trying to use a math proof in a non-mathematical situation where things can alter what happens.</blockquote>

[QUOTE="Maxperson, post: 7774124, member: 23751"] So I misspoke slightly. Not all schools of mathematical thought hold that the proof is [B]universally valid[/B]. You are also using the proof incorrectly incorrectly here. "Proof by contradiction is valid only under certain conditions. The main conditions are: - The problem can be described as a set of (usually two) mutually exclusive propositions; - [B]These cases are demonstrably exhaustive, in the sense that no other possible proposition exists.[/B] Under these circumstances, if all but one of the cases are proven to be false, the remaining case must be true." I've shown you other propositions that exist and you keep dismissing them saying basically that you don't care about them, you only care about your two propositions. That makes your proof invalid. And of course you are trying to use a math proof in a non-mathematical situation where things can alter what happens. [/QUOTE]

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