15-816 Modal Logic
Lecture 8: Sequent Calculus

In this lecture we introduce the sequent calculus as a calculus to describe the search for a verification. We prove its relationship to verifications, and it important internal properties: identity and cut. This will allow us to finally close the gap and show that every true proposition has a verification.

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fp@cs, aplatzer@cs
Frank Pfenning, André Platzer