Documentation

Lean.Meta.Tactic.Assumption

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def Lean.Meta.findLocalDeclWithType? (type : Expr) :
MetaM (Option FVarId)

Return a local declaration whose type is definitionally equal to type.

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    def Lean.MVarId.assumptionCore (mvarId : MVarId) :
    MetaM Bool

    Return true if managed to close goal mvarId using an assumption.

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      def Lean.MVarId.assumption (mvarId : MVarId) :
      MetaM Unit

      Close goal mvarId using an assumption. Throw error message if failed.

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