0.08/0.12 % Problem : theBenchmark.p : TPTP v0.0.0. Released v0.0.0. 0.08/0.13 % Command : parallel-twee %s --tstp --conditional-encoding if --smaller --drop-non-horn --give-up-on-saturation --explain-encoding --formal-proof 0.13/0.34 % Computer : n008.cluster.edu 0.13/0.34 % Model : x86_64 x86_64 0.13/0.34 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz 0.13/0.34 % Memory : 8042.1875MB 0.13/0.34 % OS : Linux 3.10.0-693.el7.x86_64 0.13/0.34 % CPULimit : 1200 0.13/0.34 % WCLimit : 120 0.13/0.34 % DateTime : Tue Jul 13 10:45:44 EDT 2021 0.13/0.34 % CPUTime : 27.87/3.93 % SZS status Theorem 27.87/3.93 27.87/3.93 % SZS output start Proof 27.87/3.93 Take the following subset of the input axioms: 27.87/3.93 fof(ax1_1123, axiom, ![SPECMT, GENLMT]: ((mtvisible(SPECMT) & genlmt(SPECMT, GENLMT)) => mtvisible(GENLMT))). 27.87/3.93 fof(ax1_140, axiom, genlmt(c_tptpgeo_spindlecollectormt, c_tptpgeo_member1_mt)). 27.87/3.93 fof(ax1_153, axiom, ![OBJ]: ~(tptpcol_1_65536(OBJ) & tptpcol_1_1(OBJ))). 27.87/3.93 fof(ax1_167, axiom, ![OBJ]: ~(setorcollection(OBJ) & individual(OBJ))). 27.87/3.93 fof(ax1_207, axiom, mtvisible(c_tptpgeo_member1_mt) => borderson(c_georegion_l4_x45_y9, c_georegion_l4_x45_y10)). 27.87/3.93 fof(ax1_289, axiom, ![OBJ]: ~(collection(OBJ) & individual(OBJ))). 27.87/3.93 fof(ax1_3, axiom, ![OBJ]: ~(intangible(OBJ) & partiallytangible(OBJ))). 27.87/3.93 fof(ax1_363, axiom, ![OBJ, COL1, COL2]: ~(isa(OBJ, COL1) & (disjointwith(COL1, COL2) & isa(OBJ, COL2)))). 27.87/3.93 fof(ax1_488, axiom, ![OBJ]: ~(tptpcol_3_98305(OBJ) & tptpcol_3_114688(OBJ))). 27.87/3.93 fof(ax1_521, axiom, ![X]: ~affiliatedwith(X, X)). 27.87/3.93 fof(ax1_698, axiom, ![X]: ~objectfoundinlocation(X, X)). 27.87/3.93 fof(ax1_901, axiom, ![X]: ~borderson(X, X)). 27.87/3.93 fof(query98, conjecture, ?[ARG2]: (borderson(c_georegion_l4_x45_y9, ARG2) <= mtvisible(c_tptpgeo_spindlecollectormt))). 27.87/3.93 27.87/3.93 Now clausify the problem and encode Horn clauses using encoding 3 of 27.87/3.93 http://www.cse.chalmers.se/~nicsma/papers/horn.pdf. 27.87/3.93 We repeatedly replace C & s=t => u=v by the two clauses: 27.87/3.93 fresh(y, y, x1...xn) = u 27.87/3.93 C => fresh(s, t, x1...xn) = v 27.87/3.93 where fresh is a fresh function symbol and x1..xn are the free 27.87/3.93 variables of u and v. 27.87/3.93 A predicate p(X) is encoded as p(X)=true (this is sound, because the 27.87/3.93 input problem has no model of domain size 1). 27.87/3.93 27.87/3.93 The encoding turns the above axioms into the following unit equations and goals: 27.87/3.93 27.87/3.93 Axiom 1 (ax1_140): genlmt(c_tptpgeo_spindlecollectormt, c_tptpgeo_member1_mt) = true2. 27.87/3.93 Axiom 2 (query98): mtvisible(c_tptpgeo_spindlecollectormt) = true2. 27.87/3.93 Axiom 3 (ax1_207): fresh626(X, X) = true2. 27.87/3.93 Axiom 4 (ax1_1123): fresh680(X, X, Y) = true2. 27.87/3.93 Axiom 5 (ax1_207): fresh626(mtvisible(c_tptpgeo_member1_mt), true2) = borderson(c_georegion_l4_x45_y9, c_georegion_l4_x45_y10). 27.87/3.93 Axiom 6 (ax1_1123): fresh681(X, X, Y, Z) = mtvisible(Z). 27.87/3.93 Axiom 7 (ax1_1123): fresh681(mtvisible(X), true2, X, Y) = fresh680(genlmt(X, Y), true2, Y). 27.87/3.93 27.87/3.93 Goal 1 (query98_1): borderson(c_georegion_l4_x45_y9, X) = true2. 27.87/3.93 The goal is true when: 27.87/3.93 X = c_georegion_l4_x45_y10 27.87/3.93 27.87/3.93 Proof: 27.87/3.93 borderson(c_georegion_l4_x45_y9, c_georegion_l4_x45_y10) 27.87/3.93 = { by axiom 5 (ax1_207) R->L } 27.87/3.93 fresh626(mtvisible(c_tptpgeo_member1_mt), true2) 27.87/3.93 = { by axiom 6 (ax1_1123) R->L } 27.87/3.93 fresh626(fresh681(true2, true2, c_tptpgeo_spindlecollectormt, c_tptpgeo_member1_mt), true2) 27.87/3.93 = { by axiom 2 (query98) R->L } 27.87/3.93 fresh626(fresh681(mtvisible(c_tptpgeo_spindlecollectormt), true2, c_tptpgeo_spindlecollectormt, c_tptpgeo_member1_mt), true2) 27.87/3.93 = { by axiom 7 (ax1_1123) } 27.87/3.93 fresh626(fresh680(genlmt(c_tptpgeo_spindlecollectormt, c_tptpgeo_member1_mt), true2, c_tptpgeo_member1_mt), true2) 27.87/3.93 = { by axiom 1 (ax1_140) } 27.87/3.93 fresh626(fresh680(true2, true2, c_tptpgeo_member1_mt), true2) 27.87/3.93 = { by axiom 4 (ax1_1123) } 27.87/3.93 fresh626(true2, true2) 27.87/3.93 = { by axiom 3 (ax1_207) } 27.87/3.93 true2 27.87/3.93 % SZS output end Proof 27.87/3.93 27.87/3.93 RESULT: Theorem (the conjecture is true). 27.87/3.95 EOF