Welcome to Sequoia!

Design, play with, and analyze sequent calculus proof systems.


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DESIGN

Create, save, modify, and manage your own calculi.

PLAY

Build proof trees in your calculus and understand how the rules interact. You can use concrete or schematic sequents.

ANALYZE

Investigate meta-theoretical properties for your calculus systems (such as identity expansion, weakening admissibility, and permutability of rules). Sequoia is able to infer most of the trivial cases automatically.

Sequoia is developed by: Past team members: