author oheimb
Mon, 21 Sep 1998 23:04:51 +0200
changeset 5519 54e313ed22ba
parent 4382 c1536da54f52
child 10941 6c09cae3b4ad
permissions -rw-r--r--
re-added mem and list_all improved indentation improved addbefore and addSbefore improved mechanism for unsafe wrappers

Isabelle BUGS -- history of reported faults

1.  Symptom: hyp_subst_tac does nothing if the selected equality involves type
    unknowns.  Cause: it uses the simplifier, which ignores such equalities.
    Fix: check for type unknowns in hypsubst/inspect_pair;  change interface
    function dest_eq to return the type of the equality. (lcp, 5/11/97)

2.  Symptom: read_instantiate_sg has problems instantiating types in some
    simultaneous instantiations (Message-id: <199710301432.PAA20594@sirius.Informatik.Uni-Bremen.DE> on isabelle-users)