QuotientAddGroup.quotientAddEquivOfEq

{G : Type u} →
  [inst : AddGroup G] → {M N : AddSubgroup G} → [inst_1 : M.Normal] → [inst_2 : N.Normal] → M = N → G ⧸ M ≃+ G ⧸ N

If two normal subgroups M and N of G are the same, their quotient groups are isomorphic.

Defined in: Mathlib.GroupTheory.QuotientGroup.Basic
Cited by: 1 results in Mathlib
Foundations: Depth 76 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes: AddGroup AddSubgroup.Normal AddSubgroup.Normal

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