Theorems · Theorem · combinatorics
Fin.contractNth_apply_of_eq
∀ {n : ℕ} {α : Sort u_1} (j : Fin (n + 1)) (op : α → α → α) (g : Fin (n + 1) → α) (k : Fin n),
↑k = ↑j → j.contractNth op g k = op (g k.castSucc) (g k.succ)- Defined in
- Mathlib.Data.Fin.Tuple.Basic
- Cited by
- 5 results in Mathlib
- Foundations
- Depth 21 from the axioms · uses no axioms
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites3
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- le_of_eqproof · cited by 366
- not_ltproof · cited by 306
- Fin.contractNthstatement · cited by 21
Cited by5
Results whose statement or proof uses this declaration.
- Fin.partialProd_contractNthproof · cited by 1
- Fin.neg_partialSum_add_eq_contractNthproof · cited by 0
- Fin.partialSum_contractNthproof · cited by 0
- Fin.inv_partialProd_mul_eq_contractNthproof · cited by 0
- Fin.comp_contractNthproof · cited by 0