Documentation

Lean.Meta.KExprMap

structure Lean.Meta.KExprMap (α : Type) :

A mapping that indentifies definitionally equal expressions. We implement it as a mapping from HeadIndex to AssocList Expr α.

Remark: this map may be quite inefficient if there are many HeadIndex collisions.

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    • Lean.Meta.instInhabitedKExprMap = { default := { map := default } }

    Return some v if there is an entry e ↦ v in m.

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    • One or more equations did not get rendered due to their size.
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      Insert e ↦ v into m

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      • One or more equations did not get rendered due to their size.
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