invoke Variable.export/import_term on the entire formula, to make sure that schematic variables don't get different indices in different subterms;
this resulted in a subtle soundness bug in Sledgehammer -- introduced by the transition to FOF
lcp paulson
norbert.schirmer@web.de schirmer
schirmer@in.tum.de schirmer
urbanc@in.tum.de urbanc
nipkow@lapbroy100.local nipkow
chaieb@chaieb-laptop chaieb
immler@in.tum.de immler
tsewell@rubicon.NSW.bigpond.net.au tsewell
tsewell@nicta.com.au tsewell