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Brandon Rozek 2023-02-19 23:53:34 -05:00
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--- ---
title: "Prefix Normal Form - Implication Exercise" title: "Prenex Normal Form - Implication Exercise"
date: 2023-02-17T11:05:35-05:00 date: 2023-02-17T11:05:35-05:00
draft: false draft: false
tags: [] tags: []
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medium_enabled: false medium_enabled: false
--- ---
I recently read through the Wikipedia article on [Prefix Normal Form](https://en.wikipedia.org/wiki/Prenex_normal_form). It first describes the two equivalences for conjunction/disjunction. I recently read through the Wikipedia article on [Prenex Normal Form](https://en.wikipedia.org/wiki/Prenex_normal_form). It first describes the two equivalences for conjunction/disjunction.
$$ $$
(\forall x \phi) \vee \psi \iff \forall x(\phi \vee \psi) \tag{1.1} (\forall x \phi) \vee \psi \iff \forall x(\phi \vee \psi) \tag{1.1}
$$ $$