Documentation

Lean.Meta.Tactic.Assumption

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

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

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

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

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      @[deprecated Lean.MVarId.assumptionCore]
      def Lean.Meta.assumptionCore (mvarId : Lean.MVarId) :
      Lean.MetaM Bool
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        def Lean.MVarId.assumption (mvarId : Lean.MVarId) :
        Lean.MetaM Unit

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

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          @[deprecated Lean.MVarId.assumption]
          def Lean.Meta.assumption (mvarId : Lean.MVarId) :
          Lean.MetaM Unit
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