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𝔽⎊𝔾 𝕩, 𝕨 𝔽⎊𝔾 𝕩: Catch

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Apply 𝔽 to the arguments.

If an error happens when 𝔽 is applied, cancel its execution, apply 𝔾 to the arguments and return its result.

Otherwise, return the result of 𝔽.

    ∾⎊{"error occurred with argument: "∾•Fmt 𝕩} 1

    ∾⎊{"error occurred with argument: "∾•Fmt 𝕩} ⟨⟨1,2⟩, ⟨3,4⟩⟩