Post
ThomasđŸª´
lipsum.dev
did:plc:denld7ao24tcahogbclo3if3
Avec l'assistant de preuve Lean :
theorem married_looks_unmarried
(H1 : Looks Paul Linda)
(H2 : Looks Linda John)
(H3 : Married Paul)
(H4 : ¬Married John) :
∃ x y : Person, Married x ∧ ¬Married y ∧ Looks x y :=
by
by_cases h : Married Linda
· exists Linda, John
· exists Paul, Linda
2025-10-29T16:18:37.857Z