Documentation

Lean.Compiler.LCNF.InferType

Type inference for LCNF #

@[reducible, inline]

We use a regular local context to store temporary local declarations created during type inference.

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                                                Return true if type should be erased. See item 1 in the note above where x ◾ ◾ is a proposition and should be erased when the universe level parameter is set to 0.

                                                Remark: predVars is a bitmask that indicates whether de-bruijn variables are predicates or not. That is, #i is a predicate if predVars[predVars.size - i - 1] = true

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                                                  Return true if the given LCNF are equivalent. List Nat and (fun x => List x) Nat are both equivalent.