Type Theory in Purescript 03: What Is Sequent Calculus?
00:00:00 Introduction
00:03:37 Review
00:21:44 What is Sequent Calculus
00:28:38 Why not Natural Deduction
00:39:00 What is a Sequent
00:42:45 Rules for Sequents
00:52:35 Structural Rules
01:04:34 Formula and Sequent in Purescript
01:11:00 I did a Boo-Boo
01:16:00 Examples!
01:33:30 Simpler Rules
Locally Nameless Blog Post: https://boarders.github.io/posts/loca...
Watch me and Denisa implement pure functional languages in Purescript! We will write parsers, interpreters (small-step semantics), type checking, and proof search (fill typed hole)!
Episode 1 shows basic syntax and parsing.
Episode 2 shows simplifying and substituting terms.
Episode 3 shows Sequent Calculus
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