lean4-htt/tests/lean/run/hinst_lemmas1.lean
2017-03-09 18:41:19 -08:00

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309 B
Text

run_cmd
do
tactic.trace "hinst_lemmas example:",
hs ← return $ hinst_lemmas.mk,
h₁ ← hinst_lemma.mk_from_decl `add_zero,
h₂ ← hinst_lemma.mk_from_decl `zero_add,
h₃ ← hinst_lemma.mk_from_decl `add_comm,
hs ← return $ ((hs^.add h₁)^.add h₂)^.add h₃,
hs^.pp >>= tactic.trace