Type Inference for MiniML (without let)

This theory defines the type inference rules and the type inference algorithm W for simply-typed lambda terms due to Milner. It proves the soundness and completeness of W w.r.t. to the rules. An optimized version I is shown to implement W.

A report describing the theory is found here:
Formal Verification of Algorithm W: The Monomorphic Case.

NOTE: This theory has been superseded by a more recent development which formalizes type inference for a language including let. For details click here.