# Category:Definitions/Proof Systems

This category contains definitions related to Proof Systems.
Related results can be found in Category:Proof Systems.

A proof system $\mathscr P$ for $\LL$ comprises:

• Axioms and/or axiom schemata;
• Rules of inference for deriving theorems.

It is usual that a proof system does this by declaring certain arguments concerning $\LL$ to be valid.

Informally, a proof system amounts to a precise account of what constitutes a (formal) proof.

## Subcategories

This category has the following 2 subcategories, out of 2 total.