Theorems · Theorem · order theory

CompositionSeries.mem_eraseLast_of_ne_of_mem

∀ {X : Type u} [inst : Lattice X] [inst_1 : JordanHolderLattice X] {s : CompositionSeries X} {x : X},
  x ≠ RelSeries.last s → x ∈ s → x ∈ RelSeries.eraseLast s

Defined in

Mathlib.Order.JordanHolder

Cited by

1 results in Mathlib

Foundations

Depth 34 from the axioms · uses propext, Classical.choice, Quot.sound

Assumes

LatticeJordanHolderLattice