refactor(library/data/finset/basic): rename theorem
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@ -251,7 +251,7 @@ protected theorem induction_on {P : finset A → Prop} (s : finset A)
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P s :=
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finset.induction H1 H2 s
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theorem exists_of_not_empty {s : finset A} : s ≠ ∅ → ∃ a : A, a ∈ s :=
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theorem exists_me_of_ne_empty {s : finset A} : s ≠ ∅ → ∃ a : A, a ∈ s :=
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begin
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induction s with a s nin ih,
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{intro h, exact absurd rfl h},
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