- IS_PROCESS_choice
-
|- !A P.
WELL_DEF_ALPHA A P ==>
IS_PROCESS
((@A'. (!x. x IN A ==> (ALPHA (P x) = A')) /\ A SUBSET A'),
{[]} UNION {CONS a t | a IN A /\ t IN TRACES (P a)})
- ALPHA_choice
-
|- !P A.
WELL_DEF_ALPHA A P ==>
(ALPHA (choice A P) =
(@A'. (!x. x IN A ==> (ALPHA (P x) = A')) /\ A SUBSET A'))
- TRACES_choice
-
|- !P A.
WELL_DEF_ALPHA A P ==>
(TRACES (choice A P) =
{[]} UNION {CONS a t | a IN A /\ t IN TRACES (P a)})
- ALPHA_choice_SPEC
-
|- WELL_DEF_ALPHA A P ==> (!c. c IN A ==> (ALPHA (choice A P) = ALPHA (P c)))