ALL_THEN : thm_tactical

SYNOPSIS
Passes a theorem unchanged to a theorem-tactic.

DESCRIBE
For any theorem-tactic ttac and theorem th, the application ALL_THEN ttac th results simply in ttac th, that is, the theorem is passed unchanged to the theorem-tactic. ALL_THEN is the identity theorem-tactical.

FAILURE
The application of ALL_THEN to a theorem-tactic never fails. The resulting theorem-tactic fails under exactly the same conditions as the original one.

USES
Writing compound tactics or tacticals, e.g. terminating list iterations of theorem-tacticals.

SEEALSO  ALL_TAC,   FAIL_TAC,   NO_TAC,   NO_THEN,   THEN_TCL,   ORELSE_TCL

HOL  Kananaskis 0