Theorems · Theorem · combinatorics
Multiset.erase_add_left_pos
∀ {α : Type u_1} [inst : DecidableEq α] {a : α} {s : Multiset α} (t : Multiset α),
a ∈ s → (s + t).erase a = s.erase a + t- Defined in
- Mathlib.Data.Multiset.AddSub
- Cited by
- 3 results in Mathlib
- Foundations
- Depth 20 from the axioms · uses propext, Classical.choice, Quot.sound
- Assumes
- DecidableEq
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites2
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- Multisetstatement and proof · cited by 2,627
- Multiset.erasestatement · cited by 93
Cited by3
Results whose statement or proof uses this declaration.
- Relation.cutExpand_iffproof · cited by 2
- Multiset.erase_add_right_posproof · cited by 1
- Relation.cutExpand_fibrationproof · cited by 1