Documentation

Mathlib.Tactic.Measurability

Measurability #

We define the measurability tactic using aesop.

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def measurability :
Lean.ParserDescr

The measurability attribute used to tag measurability statements for the measurability tactic.

Note that measurability uses fun_prop for solving measurability of functions, so statements about Measurable, AEMeasurable, StronglyMeasurable and AEStronglyMeasurable should be tagged with fun_prop rather that measurability. The measurability attribute is equivalent to fun_prop in these cases for backward compatibility with the earlier implementation.

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    def tacticMeasurability :
    Lean.ParserDescr

    The tactic measurability solves goals of the form Measurable f, AEMeasurable f, StronglyMeasurable f, AEStronglyMeasurable f μ, or MeasurableSet s by applying lemmas tagged with the measurability user attribute.

    Note that measurability uses fun_prop for solving measurability of functions, so statements about Measurable, AEMeasurable, StronglyMeasurable and AEStronglyMeasurable should be tagged with fun_prop rather that measurability. The measurability attribute is equivalent to fun_prop in these cases for backward compatibility with the earlier implementation.

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      def tacticMeasurability? :
      Lean.ParserDescr

      The tactic measurability? solves goals of the form Measurable f, AEMeasurable f, StronglyMeasurable f, AEStronglyMeasurable f μ, or MeasurableSet s by applying lemmas tagged with the measurability user attribute, and suggests a faster proof script that can be substituted for the tactic call in case of success.

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        def measurability! :
        Lean.ParserDescr
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          def measurability!? :
          Lean.ParserDescr
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