fixed typo

move multiset lemmas into distro

more multiset lemmas

support Zipperposition's skolemization in generated Isar proofs

deal with new-style Vampire skolemization in reconstructed Isar proofs

new less ad hoc implementation of the 'moura' tactic for skolemization

simplified proofs

simplified proof

avoid noncanonical uses of 'moura' tactic ahead of new implementation of tactic

avoid noncanonical uses of 'moura' tactic ahead of new implementation of tactic

tuned proofs

remove selected occurrences of 'moura' tactic

Distinguish two versions of cvc5 -- one used for Sledgehammer, one for proof…

check that Isar proofs contain one 'show'

include unnamed chained facts in Sledgehammer's relevance filter

merge

removed hack in Sledgehammer that confuses preplay and gives Sledgehammer a…

don't freeze terms in Sledgehammer, as this has a bad impact on 'using' facts

added argo

avoid legacy binding errors in Sledgehammer Isar proofs

parse applie lambdas correctly plus deal gracefully with lambda-lifting in…

allow (~) syntax in TPTP proofs for unapplied negation

reconstruct Zipperposition's if-then-else in Sledgehammer Isar proofs

use same associativity as Isabelle when parsing HOL proofs

improved Sledgehammer's HOL proof parser w.r.t. negation

tuned Sledgehammer messages

respect timeout better

avoid using FOOL syntax with older Vampire versions because of soundness bug…

avoid using FOOL syntax with older Vampire versions because of soundness bug…

disable 'falsify' and 'abduce' in Sledgehammer by default, since they don't…

made 'primcorec' more robust

small simplifications

shortened some parts of Huffman proof using Sledgehammer

removed accidental junk

use simplifier to classify the missing assumptions in Sledgehammer's abduction…

don't try to falisfy goals with schematics

require the presence of free variables to do abduction in Sledgehammer

detect duplicates in Sledgehammer output -- suggested by Larry Paulson

got rid of 'important message' mechanism in SystemOnTPTP (which is less used…

tweaked Sledgehammer interaction

there won't be an E version 2.7

compile

adopt terminology suggested by Larry Paulson

reverted 0506c3273814 -- the message is still useful

more robust E proof parsing

tweaked abduction in Sledgehammer

avoid double 'Warning:' in Sledgehammer messages

slightly more documentation

renamed new Sledgehammer option

updated documentation

improve ad hoc abduction in Sledgehammer

tuning

implemented ad hoc abduction in Sledgehammer with E

don't apply abduction and consistency checking to goals of the form 'False'

tuned metis call to avoid obscure feature

removed rarely used error in Sledgehammer

added refute mode to Sledgehammer to find 'counterexamples'

updated NEWS

careful eta-contraction in Metis to keep argument to All and Ex expanded

added lifting_forget as suggested by Peter Lammich

merge

adapted to Isabelle/c48fe2be847f

compile

correctly show '(> 2 s, timed out)' or similar in Sledgehammer's output

use timeout with MiniSat

generate some metainformation not only for SPASS but also for Zipperposition…

added a bound in SMT on the number of schematic constants considered -- the…

replaced slow smt call by blast

tuning

reintroduced SPASS to the mix

tweaked generation of Isar proofs

tweak Sledgehammer's slicing mechanism -- updated Zipperposition's slices and…

revived 'try0' and 'smart' Isar proofs in Sledgehammer