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The logic of classical language/it (view source)
Revision as of 03:51, 27 October 2021
, 3 years agoCreated page with "Dimostrazione per assurdo"
#''Membership'', che è indicata dal simbolo <math>\in</math> (is an element of) o dal simbolo <math>\not\in</math> (is not an element of):
#''Membership'', che è indicata dal simbolo <math>\in</math> (is an element of) o dal simbolo <math>\not\in</math> (is not an element of):
===Demonstration by absurdity===
===Dimostrazione per assurdo===
Furthermore, in classical logic there is a principle called the <u>excluded third</u> which declares that a sentence that cannot be false must be taken as true since there is no third possibility.
Furthermore, in classical logic there is a principle called the <u>excluded third</u> which declares that a sentence that cannot be false must be taken as true since there is no third possibility.