Theorem Nat.perfect_iff_sum_properDivisors

Modification history

2024-05-27 08:32
Mathlib/NumberTheory/Divisors.lean
chore: Use the new `∑ i ∈ s, f i` notation (#13209) …
Modified Nat.perfect_iff_sum_properDivisorsView on Github →
2023-07-02 10:21
Mathlib/NumberTheory/Divisors.lean
fix: `∑'` precedence (#5615) …
Modified Nat.perfect_iff_sum_properDivisorsView on Github →
2023-01-29 02:08
Mathlib/NumberTheory/Divisors.lean
feat: port NumberTheory.Divisors (#1912)
Added Nat.perfect_iff_sum_properDivisorsView on Github →