termE[_,_] — Mathlib

Lean4
/-- The additive energy of two finsets `s` and `t` in a group is the number of quadruples
`(a₁, a₂, b₁, b₂) ∈ s × s × t × t` such that `a₁ + b₁ = a₂ + b₂`. -/
@[scoped term_parser 1000]
public meta def «termE[_,_]» : Lean.ParserDescr✝ :=
  ParserDescr.node✝ `Combinatorics.Additive.«termE[_,_]» 1024
    (ParserDescr.binary✝ `andthen
      (ParserDescr.binary✝ `andthen
        (ParserDescr.binary✝ `andthen
          (ParserDescr.binary✝ `andthen (ParserDescr.symbol✝ "E[") (ParserDescr.cat✝ `term 0))
          (ParserDescr.symbol✝ ", "))
        (ParserDescr.cat✝ `term 0))
      (ParserDescr.symbol✝ "]"))
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