| oneMember(tid, als.l, gs.fwriters), FLITInv(gs, lsf, pcf), FLITInv(gs0, lsf0, pcf0), FLITPSCInv(ags, alsf, apcf), flitStep(mkstate(gs, lsf, pcf), doWriteFO(tid, l), mkstate(gs0, lsf0, pcf0)), abs(mkstate(gs, lsf, pcf), mkstate(ags, alsf, apcf)) ⊦ ∃ ags0, alsf0, apcf0. flitpscStep(mkstate(ags, alsf, apcf), pwbPSC(tid, l), mkstate(ags0, alsf0, apcf0)) ∧ abs(mkstate(gs0, lsf0, pcf0), mkstate(ags0, alsf0, apcf0)) |