MulActionHomLocal≺ — Mathlib

English

Membership in fixingSubgroup of the complement is characterized by a moved-by subset relation.

Русский

Членство в fixingSubgroup(M, sᶜ) характеризуется отношением movedBy к дополнению множества.

LaTeX

$$$m \\in fixingSubgroup(M,s^c) \\iff (fixedBy(\\alpha,m))^c \\subseteq s$$$

Lean4

/-- `φ`-equivariant functions `X → Y`,
where `φ : M → N`, where `M` and `N` act on `X` and `Y` respectively. -/
@[term_parser 1000]
public meta def «MulActionHomLocal≺» : Lean.TrailingParserDescr✝ :=
  ParserDescr.trailingNode✝ `«MulActionHomLocal≺» 25 0
    (ParserDescr.binary✝ `andthen
      (ParserDescr.binary✝ `andthen
        (ParserDescr.binary✝ `andthen (ParserDescr.symbol✝ " →ₑ[") (ParserDescr.cat✝ `term 25))
        (ParserDescr.symbol✝ "] "))
      (ParserDescr.cat✝ `term 0))

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