the splitter is now defined as a functor
moved addsplits, delsplits, Addsplits, Delsplits to Provers/splitter.ML
moved split_thm_info to Provers/splitter.ML
definined atomize via general mk_atomize
removed superfluous rot_eq_tac from simplifier.ML
HOL/simpdata.ML: renamed mk_meta_eq to meta_eq,
re-renamed mk_meta_eq_simp to mk_meta_eq
added Eps_eq to simpset
Gate2 = FOL +
consts "~&" :: "[o,o] => o" (infixl 35)
"#" :: "[o,o] => o" (infixl 30)
If :: "[o,o,o] => o" ("if _ then _ else _")
rules nand_def "P ~& Q == ~(P & Q)"
xor_def "P # Q == P & ~Q | ~P & Q"
If_def "if P then Q else R == P&Q | ~P&R"
end