Theorems · Theorem · logic and foundations
PFun.preimage_union
∀ {α : Type u_1} {β : Type u_2} (f : α →. β) (s t : Set β), f.preimage (s ∪ t) = f.preimage s ∪ f.preimage t- Defined in
- Mathlib.Data.PFun
- Cited by
- 0 results in Mathlib
- Foundations
- Depth 9 from the axioms · uses propext, Quot.sound
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Cites5
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- Setstatement and proof · cited by 53,352
- PFunstatement and proof · cited by 207
- PFun.preimagestatement · cited by 18
- PFun.graph'proof · cited by 11
- SetRel.preimage_unionproof · cited by 1
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