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Unlock: Proof Theory and Cut-Elimination

Proof theory studies the structure of proofs as mathematical objects. The cut-elimination theorem (Gentzen's Hauptsatz) shows that every proof using lemmas can be transformed into a direct proof. This connects to normalization in type theory and tactic design in proof assistants.

2 Prerequisites0 Mastered0 Working1 Gaps
Prerequisite mastery50%
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