An expansion of Curry-Howard Correspondence, the idea that not only Simply Typed Lambda Calculus and Propositional Logic are isomorphic, but that Category Theory has an Equivalence relationship to them.

Because an equivalence is a looser version of an isomorphism, you could also use the less encompassing statement that Simply Typed Lambda Calculus, Propositional Logic, and Category Theory are equivalent.

Category TheoryLogicSTLC
ObjectPropositionType
Morphism ()ProofTerm / Program
Terminal Object ()Truth ()Unit Type
Product Object ()Propositional Logic ()Pair / Tuple Type
Exponential Object ()Propositional Logic ()Function Type