Lean4
/-- If `f` is a functor, if `fb : f β` and `a : α`, then `mapConstRev fb a` is the result of
applying `f.map` to the constant function `β → α` sending everything to `a`, and then
evaluating at `fb`. In other words it's `const a <$> fb`. -/
@[term_parser 1000]
public meta def «term_$>_» : Lean.TrailingParserDescr✝ :=
ParserDescr.trailingNode✝ `Functor.«term_$>_» 100 101
(ParserDescr.binary✝ `andthen (ParserDescr.symbol✝ " $> ") (ParserDescr.cat✝ `term 101))