eduroam-prg-og-1-28-119.net.univ-paris-diderot.fr 2025-10-7:15:33:14

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oskar
2025-10-07 15:33:14 +02:00
parent 893b8a566a
commit 4005785f38
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---
up:
- "[[règles de démonstration]]"
tags:
- s/maths/logique
aliases:
---
> [!definition] Définition
> 1. $T \vdash \left[ \exists x f \leftrightarrow \neg \forall x \neg f \right]$
> 2. $T \vdash [\forall x (f \rightarrow g) \to$
^definition

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> [!definition] Définition
> Si $T \vdash f_1, \dots, T \vdash f_{n}$
> et si $\varphi(x_1, \dots, x_{n})$ est une [[tautologie]] du calcul propositionnel
> alors $T \vdash \varphi(f_1, \dots, f_{n})$
^definition

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---
up:
- "[[règles de démonstration]]"
tags:
- s/maths/logique
aliases:
---
> [!definition] Définition
> - $T \vdash x =x$
> - $T \vdash (x = y) \to (y = x)$
> - $T \vdash (x = y) \wedge (y = z) \to (x = z)$
> - $T \vdash (x_1 = y_1 \wedge \dots \wedge x_{n} = y_{n}) \to f$
^definition