English
Repeating the left SDiff biunion identity holds: s.biUnion (fun a => t.image (a \\ ·)) = s \\ t.
Русский
Повторение левой идентичности biunion SDiff: s.biUnion (fun a => t.image (a \\ ·)) = s \\ t.
LaTeX
$$$ s.biUnion (\\lambda a . t.image (a \\setminus \\cdot)) = s \\ t $$$
Lean4
@[inherit_doc Finset.compls, scoped term_parser 1000]
public meta def «term_ᶜˢ» : Lean.TrailingParserDescr✝ :=
ParserDescr.trailingNode✝ `FinsetFamily.«term_ᶜˢ» 1024 1024 (ParserDescr.symbol✝ "ᶜˢ")