NO_THEN : thm_tactical

- SYNOPSIS
- Theorem-tactical which always fails.
- DESCRIPTION
- When applied to a theorem-tactic and a theorem, the theorem-tactical NO_THEN always fails with Failwith "NO_THEN".
- FAILURE CONDITIONS
- Always fails when applied to a theorem-tactic and a theorem (note that it never gets as far as being applied to a goal!)
- USES
- Writing compound tactics or tacticals.
- SEE ALSO
- ALL_TAC, ALL_THEN, FAIL_TAC, NO_TAC.