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Exercícios de Dedução Natural (view source)
Revision as of 22:49, 12 October 2020
, 22:49, 12 October 2020no edit summary
==== <math>(\exists x)(\varphi_1 \lor \varphi_2) \dashv \vdash (\exists x)\varphi_1 \lor (\exists x)\varphi_2</math> ====
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==== <math>(\exists x)(\forall y) \varphi \vdash (\forall y)(\exists x) \varphi</math> ====
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==== <math>(\forall x)\neg\varphi \vdash \neg(\exists x)\varphi</math> ====
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==Dedução Natural para a Lógica de Primeira Ordem Clássica==
