NO_THEN : thm_tactical
STRUCTURE
SYNOPSIS
Theorem-tactical which always fails.
DESCRIPTION
When applied to a theorem-tactic and a theorem, the theorem-tactical NO_THEN always fails with string `NO_THEN`.
FAILURE
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.
SEEALSO
HOL  Trindemossen-1