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Exercícios de Dedução Natural (view source)
Revision as of 19:34, 14 October 2020
, 19:34, 14 October 2020→Derivabilidade de sequentes
==== <math>\neg(\exists x)\neg\varphi \vdash (\forall x)\varphi</math> ====
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==== <math>\vdash (\exists x)(\forall y)(B(y) \lor \neg B(x))</math> ====
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===Derivabilidade de regras===