import GameServer.Commands -- import TestGame.MyNat -- LemmaDoc zero_add as zero_add in "Addition" -- "This lemma says `∀ a : ℕ, 0 + a = a`." -- LemmaDoc add_zero as add_zero in "Addition" -- "This lemma says `∀ a : ℕ, a + 0 = a`." -- LemmaDoc add_succ as add_succ in "Addition" -- "This lemma says `∀ a b : ℕ, a + succ b = succ (a + b)`." -- LemmaSet addition : "Addition lemmas" := -- zero_add add_zero