15 lines
406 B
Text
15 lines
406 B
Text
|
(**
|
||
|
|
simple_tac = REPEAT(ORELSE(conj_hyp_tac, conj_tac, assumption_tac))
|
||
|
|
**)
|
||
|
|
|
||
|
|
Theorem T2 (A B : Bool) : A /\ B => B /\ A :=
|
||
|
|
Discharge (fun H : A /\ B,
|
||
|
|
let H1 : A := _,
|
||
|
|
H2 : B := _,
|
||
|
|
main : B /\ A := _
|
||
|
|
in main).
|
||
|
|
apply simple_tac. done.
|
||
|
|
apply simple2_tac. done.
|
||
|
|
apply simple_tac. done.
|
||
|
|
|
||
|
|
Echo "echo command after failure"
|