lean2/tests/lean/run/tactic22.lean

import logic
open tactic

theorem T (a b c d : Prop) (Ha : a) (Hb : b) (Hc : c) (Hd : d) : a ∧ b ∧ c ∧ d
:= by fixpoint (λ f, [apply @and_intro; f | assumption; f | id])
chore(*): minimize dependencies on tests Signed-off-by: Leonardo de Moura <leonardo@microsoft.com> 2014-08-25 02:58:48 +00:00			`import logic`
feat(frontends/lean): rename 'using' command to 'open' Signed-off-by: Leonardo de Moura <leonardo@microsoft.com> 2014-09-03 23:00:38 +00:00			`open tactic`
feat(library/tactic): add 'fixpoint' tactic Signed-off-by: Leonardo de Moura <leonardo@microsoft.com> 2014-07-04 08:30:28 +00:00
refactor(*): rename Bool to Prop Signed-off-by: Leonardo de Moura <leonardo@microsoft.com> 2014-07-22 16:43:18 +00:00			`theorem T (a b c d : Prop) (Ha : a) (Hb : b) (Hc : c) (Hd : d) : a ∧ b ∧ c ∧ d`
fix(library/standard): orelse notation, avoid conflict with inductive datatype declaration Signed-off-by: Leonardo de Moura <leonardo@microsoft.com> 2014-07-04 17:10:05 +00:00			`:= by fixpoint (λ f, [apply @and_intro; f \| assumption; f \| id])`