Documentation

Mathlib.Tactic.Widget.Calc

Calc widget #

This file redefines the calc tactic so that it displays a widget panel allowing to create new calc steps with holes specified by selected sub-expressions in the goal.

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def createCalc :
Batteries.CodeAction.TacticCodeAction

Code action to create a calc tactic from the current goal.

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    structure CalcParamsextends SelectInsertParams :
    Type

    Parameters for the calc widget.

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      @[implicit_reducible]
      instance instSelectInsertParamsClassCalcParams :
      SelectInsertParamsClass CalcParams
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      @[implicit_reducible]
      instance instRpcEncodableCalcParams :
      Lean.Server.RpcEncodable CalcParams
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      def suggestSteps (pos : Array Lean.SubExpr.GoalsLocation) (goalType : Lean.Expr) (params : CalcParams) :
      Lean.MetaM (String × String × Option (String.Pos.Raw × String.Pos.Raw))

      Return the link text and inserted text above and below of the calc widget.

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        def CalcPanel.rpc (params : CalcParams) :
        Lean.Server.RequestM (Lean.Server.RequestTask ProofWidgets.Html)

        Rpc function for the calc widget.

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          def CalcPanel :
          ProofWidgets.Component CalcParams

          The calc widget.

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            def Lean.Elab.Tactic.tacticCalc? :
            ParserDescr

            Create a calc proof.

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