Circled Triangle Down (⎊)

𝔽⎊𝔾 𝕩, 𝕨 𝔽⎊𝔾 𝕩: Catch

Apply 𝔽 to the arguments.

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

Otherwise, return the results of 𝔽.

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

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