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Diff — Set (mathematics)

Revision #3023 → #3245 · back to history

modifiedFunctionb2a7701b9cc0
FieldFrom #3023To #3245
mathlib.declFunction
noteFunctions `α → β` are a primitive notion in Lean's type theory used throughout Mathlib.Functions `α → β` are a primitive notion in Lean's type theory used throughout Mathlib. (Cited declaration no longer exists in Mathlib — cleared by the decl-existence sweep.)
provenanceaiai-moderated
statusformalizednot_formalized
modifiedIndexed familybabb27a93d8f
FieldFrom #3023To #3245
mathlib.declFunction
noteIndexed families are represented as ordinary functions `ι → X` in Lean; no separate definition is needed.Indexed families are represented as ordinary functions `ι → X` in Lean; no separate definition is needed. (Cited declaration no longer exists in Mathlib — cleared by the decl-existence sweep.)
provenanceaiai-moderated
statusformalizednot_formalized