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Theorem solve_cos2_half

Modification history

2023-05-30 23:18
archive/imo/imo1962_q4.lean
chore(archive + counterexamples): namespaces imo, theorems_100, counterexample, plus three more (#19129) …
Deleted solve_cos2_halfView on Github →
2020-10-13 02:01
archive/imo/imo1962_q4.lean
feat(archive/imo): formalize IMO 1962 problem 4 (#4518) …
Added solve_cos2_halfView on Github →