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Commit 2020-10-28 18:09 dfa85b54

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feat(archive/imo): formalize IMO 1981 problem Q3 (#4599) Determine the maximum value of m ^ 2 + n ^ 2, where m and n are integers in {1, 2, ..., 1981} and (n ^ 2 - m * n - m ^ 2) ^ 2 = 1.

Estimated changes

added theorem imo1981_q3
added theorem k_bound
added theorem m_n_bounds
added theorem nat_predicate.eq_imp_1
added theorem nat_predicate.imp_fib
added theorem nat_predicate.m_le_n
added theorem nat_predicate.m_pos
added theorem nat_predicate.n_le_N
added theorem nat_predicate.n_pos
added def nat_predicate
added structure problem_predicate
added theorem solution_bound
added theorem solution_greatest
added def specified_set