Boolean hyperdoctrine

**natural deduction** metalanguage, practical foundations

**type theory** (dependent, intensional, observational type theory, homotopy type theory)

**computational trinitarianism** = **propositions as types** +**programs as proofs** +**relation type theory/category theory**

A *Boolean hyperdoctrine* $P$ is a hyperdoctrine for lattices which are Boolean algebras

$P : T^{op} \to BooleanAlgebra
\,.$

A discussion of the free Boolean hyperdoctrine generated from a signature is in

Revised on August 22, 2012 11:28:42
by Urs Schreiber
(82.113.121.116)