Mathlib Map

Theorems · Definition · combinatorics

Multiset.sizeOf

{α : Type u_1} → [SizeOf α] → Multiset α → ℕ

Defines a size for a multiset by referring to the size of the underlying list. This has to be defined before the definition of Finset, otherwise its automatically generated SizeOf instance will be wrong.

Defined in
Mathlib.Data.Multiset.Defs
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Foundations
Depth 14 from the axioms · uses propext
Assumes
SizeOf
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