lean2/tests/lean/run/have5.lean
Leonardo de Moura 37b5b7c4c2 feat(library/tactic): rename 'exact' to 'assumption', 'exact' is a different tactic
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-07-02 18:10:42 -07:00

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import standard
using tactic
variables a b c d : Bool
axiom Ha : a
axiom Hb : b
axiom Hc : c
print raw
have H1 : a, by assumption,
then have H2 : b, by assumption,
have H3 : c, by assumption,
then have H4 : d, by assumption,
H4