Documentation

Lean.Meta.Tactic.Constructor

source
def Lean.MVarId.constructor (mvarId : Lean.MVarId) (cfg : optParam Lean.Meta.ApplyConfig { newGoals := Lean.Meta.ApplyNewGoals.nonDependentFirst, synthAssignedInstances := true, allowSynthFailures := false, approx := true }) :
Lean.MetaM (List Lean.MVarId)

When the goal mvarId type is an inductive datatype, constructor calls apply with the first matching constructor.

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    source
    @[deprecated Lean.MVarId.constructor]
    def Lean.Meta.constructor (mvarId : Lean.MVarId) (cfg : optParam Lean.Meta.ApplyConfig { newGoals := Lean.Meta.ApplyNewGoals.nonDependentFirst, synthAssignedInstances := true, allowSynthFailures := false, approx := true }) :
    Lean.MetaM (List Lean.MVarId)
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    Instances For
      source
      def Lean.MVarId.existsIntro (mvarId : Lean.MVarId) (w : Lean.Expr) :
      Lean.MetaM Lean.MVarId
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        source
        @[deprecated Lean.MVarId.existsIntro]
        def Lean.Meta.existsIntro (mvarId : Lean.MVarId) (w : Lean.Expr) :
        Lean.MetaM Lean.MVarId
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