ERRATA FOR ISABELLE MANUAL ** THM : BASIC INFERENCE ** Pure/tactic/lift_inst_rule: now checks for distinct parameters (could also compare with free variable names, though). Variables in the insts are now lifted over all parameters; their index is also increased. Type vars in the lhs variables are also increased by maxidx+1; this is essential for HOL examples to work. ** THEORY MATTERS (GENERAL) ** Definitions: users must ensure that the left-hand side is nothing more complex than a function application -- never using fancy syntax. E.g. never > ("the_def", "THE y. P(y) == Union({y . x:{0}, P(y)})" ), but < ("the_def", "The(P) == Union({y . x:{0}, P(y)})" ), Provers/classical, simp (new simplifier), tsimp (old simplifier), ind ** SYSTEMS MATTERS ** explain make system? maketest expandshort