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Date: Wed, 18 Apr 90 15:39:19 BST
From: tfm%computer-lab.cambridge.ac.uk@NSFnet-Relay.AC.UK
Message-Id: <9004181439.AA10594@uk.ac.cam.cl.moorhen>
To: info-hol%clover.ucdavis.edu@NSFnet-Relay.AC.UK
Subject: MATCH_MP_IMP_TAC.

RE: Allan Stavely's recent query about MATCH_IMP_MP_TAC.

The quick answer is that there is a bug in the group library distributed
with HOL.1.11 which causes MATCH_MP_IMP_TAC to fail in this case.   This
has been fixed in HOL.1.12 (which is not yet available for general release).

Perhaps Elsa could post a patch for users who have version 1.11?

Tom

PS: the built-in tactic MATCH_MP_TAC does almost the same thing as
    MATCH_MP_IMP_TAC, so you might try that.

