TPTP Problem File: SWX230_1.p

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%------------------------------------------------------------------------------
% File     : SWX230_1 : TPTP v9.3.0. Released v9.3.0.
% Domain   : Software Verification
% Problem  : Find a 3-coloring for a graph
% Version  : Especial.
% English  :

% Refs     : [CST26] Claessen et al. (2026), Email to Geoff Sutcliffe
% Source   : [CST26]
% Names    : Graph_prop_d5.p [CST26]

% Status   : Theorem
% Rating   : 1.00 v9.3.0
% Syntax   : Number of formulae    :   60 (  50 unt;   1 typ;   0 def)
%            Number of atoms       :  337 (  56 equ)
%            Maximal formula atoms :    3 (   5 avg)
%            Number of connectives :   22 (   9   ~;   0   |;   2   &)
%                                         (   4 <=>;   7  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    9 (   3 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of FOOLs       :  273 ( 267 fml;   6 var)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    2 (   1   >;   1   *;   0   +;   0  <<)
%            Number of predicates  :   44 (  42 usr;  11 prp; 0-2 aty)
%            Number of functors    :    1 (   1 usr;   0 con; 2-2 aty)
%            Number of variables   :   94 (  93   !;   1   ?;   4   :)
% SPC      : TX0_THM_EQU_NAR

% Comments :
%------------------------------------------------------------------------------
tff(type_001,type,
    cons3: ( $o * $i ) > $i ).

tff(axiom_002,axiom,
    ! [X,X2] : ( proj1pair(pair2(X,X2)) = X ) ).

tff(axiom_003,axiom,
    ! [X,X2] : ( proj2pair(pair2(X,X2)) = X2 ) ).

tff(axiom_004,axiom,
    ! [X,X2] : ( head(cons(X,X2)) = X ) ).

tff(axiom_005,axiom,
    ! [X,X2] : ( tail(cons(X,X2)) = X2 ) ).

tff(axiom_006,axiom,
    ! [X,X2] : ( nil != cons(X,X2) ) ).

tff(axiom_007,axiom,
    ! [X,X2] : ( head2(cons2(X,X2)) = X ) ).

tff(axiom_008,axiom,
    ! [X,X2] : ( tail2(cons2(X,X2)) = X2 ) ).

tff(axiom_009,axiom,
    ! [X,X2] : ( nil2 != cons2(X,X2) ) ).

tff(axiom_010,axiom,
    ! [X: $o,X2] :
      ( head3(cons3((X),X2))
    <=> (X) ) ).

tff(axiom_011,axiom,
    ! [X: $o,X2] : ( tail3(cons3((X),X2)) = X2 ) ).

tff(axiom_012,axiom,
    ! [X: $o,X2] : ( nil3 != cons3((X),X2) ) ).

tff(axiom_013,axiom,
    ! [X] : ( proj1Suc(suc(X)) = X ) ).

tff(axiom_014,axiom,
    ! [X] : ( zero != suc(X) ) ).

tff(axiom_015,axiom,
    ! [X] : ( proj1Just(just(X)) = X ) ).

tff(axiom_016,axiom,
    ! [X] : ( nothing != just(X) ) ).

tff(axiom_017,axiom,
    predNat(zero) = zero ).

tff(axiom_018,axiom,
    ! [Y] : ( predNat(suc(Y)) = Y ) ).

tff(axiom_019,axiom,
    one = suc(zero) ).

tff(axiom_020,axiom,
    two = suc(one) ).

tff(axiom_021,axiom,
    three = suc(two) ).

tff(axiom_022,axiom,
    ~ lt(zero,zero) ).

tff(axiom_023,axiom,
    ! [Z] : lt(zero,suc(Z)) ).

tff(axiom_024,axiom,
    ! [X2] : ~ lt(suc(X2),zero) ).

tff(axiom_025,axiom,
    ! [X2,Y2] :
      ( lt(suc(X2),suc(Y2))
    <=> lt(X2,Y2) ) ).

tff(axiom_026,axiom,
    ! [Y] : ( index(nil2,Y) = nothing ) ).

tff(axiom_027,axiom,
    ! [Z,X2] : ( index(cons2(Z,X2),zero) = just(Z) ) ).

tff(axiom_028,axiom,
    ! [Z,X2,N] : ( index(cons2(Z,X2),suc(N)) = index(X2,N) ) ).

tff(axiom_029,axiom,
    four = suc(three) ).

tff(axiom_030,axiom,
    formula(nil2) = nil3 ).

tff(axiom_031,axiom,
    ! [Y,Z] : ( formula(cons2(Y,Z)) = cons3(lt(Y,three),formula(Z)) ) ).

tff(axiom_032,axiom,
    five = suc(four) ).

tff(axiom_033,axiom,
    ! [X,Y] :
      ( lt(Y,X)
     => ( enumFromToNat(X,Y) = nil2 ) ) ).

tff(axiom_034,axiom,
    ! [X,Y] :
      ( ~ lt(Y,X)
     => ( enumFromToNat(X,Y) = cons2(X,enumFromToNat(suc(X),Y)) ) ) ).

tff(axiom_035,axiom,
    dodeca(nil2) = nil ).

tff(axiom_036,axiom,
    ! [Y,Z] : ( dodeca(cons2(Y,Z)) = cons(pair2(Y,suc(Y)),dodeca(Z)) ) ).

tff(axiom_037,axiom,
    ! [A] : ( colouring(A,nil) = nil3 ) ).

tff(axiom_038,axiom,
    ! [A,Z,U,V] :
      ( ( index(A,U) = nothing )
     => ( colouring(A,cons(pair2(U,V),Z)) = cons3($false,colouring(A,Z)) ) ) ).

tff(axiom_039,axiom,
    ! [A,Z,U,V,C1] :
      ( ( index(A,U) = just(C1) )
     => ( ( index(A,V) = nothing )
       => ( colouring(A,cons(pair2(U,V),Z)) = cons3($false,colouring(A,Z)) ) ) ) ).

tff(axiom_040,axiom,
    ! [A,Z,U,V,C1,C2] :
      ( ( index(A,U) = just(C1) )
     => ( ( index(A,V) = just(C2) )
       => ( colouring(A,cons(pair2(U,V),Z)) = cons3(C1 != C2,colouring(A,Z)) ) ) ) ).

tff(axiom_041,axiom,
    ! [Y] : ( append(nil,Y) = Y ) ).

tff(axiom_042,axiom,
    ! [Y,Z,Xs] : ( append(cons(Z,Xs),Y) = cons(Z,append(Xs,Y)) ) ).

tff(axiom_043,axiom,
    and2(nil3) ).

tff(axiom_044,axiom,
    ! [Y: $o,Xs] :
      ( and2(cons3((Y),Xs))
    <=> ( (Y)
        & and2(Xs) ) ) ).

tff(axiom_045,axiom,
    ! [X,Y] :
      ( colouring2(X,Y)
    <=> and2(colouring(Y,X)) ) ).

tff(axiom_046,axiom,
    ! [Y] : ( add(zero,Y) = Y ) ).

tff(axiom_047,axiom,
    ! [Y,Z] : ( add(suc(Z),Y) = suc(add(Z,Y)) ) ).

tff(axiom_048,axiom,
    ! [X] : ( dodeca2(X,nil2) = nil ) ).

tff(axiom_049,axiom,
    ! [X,Z,X2] : ( dodeca2(X,cons2(Z,X2)) = cons(pair2(Z,add(suc(X),Z)),dodeca2(X,X2)) ) ).

tff(axiom_050,axiom,
    ! [X] : ( dodeca3(X,nil2) = nil ) ).

tff(axiom_051,axiom,
    ! [X,Z,X2] : ( dodeca3(X,cons2(Z,X2)) = cons(pair2(add(suc(X),Z),add(add(suc(X),suc(X)),Z)),dodeca3(X,X2)) ) ).

tff(axiom_052,axiom,
    ! [X] : ( dodeca4(X,nil2) = nil ) ).

tff(axiom_053,axiom,
    ! [X,Z,X2] : ( dodeca4(X,cons2(Z,X2)) = cons(pair2(add(suc(X),suc(Z)),add(add(suc(X),suc(X)),Z)),dodeca4(X,X2)) ) ).

tff(axiom_054,axiom,
    ! [X] : ( dodeca5(X,nil2) = nil ) ).

tff(axiom_055,axiom,
    ! [X,Z,X2] : ( dodeca5(X,cons2(Z,X2)) = cons(pair2(add(add(suc(X),suc(X)),Z),add(add(add(suc(X),suc(X)),suc(X)),Z)),dodeca5(X,X2)) ) ).

tff(axiom_056,axiom,
    ! [X] : ( dodeca6(X,nil2) = nil ) ).

tff(axiom_057,axiom,
    ! [X,Z,X2] : ( dodeca6(X,cons2(Z,X2)) = cons(pair2(add(add(add(suc(X),suc(X)),suc(X)),Z),add(add(add(suc(X),suc(X)),suc(X)),suc(Z))),dodeca6(X,X2)) ) ).

tff(axiom_058,axiom,
    dodeca7(zero) = nil ).

tff(axiom_059,axiom,
    ! [Y] : ( dodeca7(suc(Y)) = append(cons(pair2(Y,zero),dodeca(enumFromToNat(zero,Y))),append(dodeca2(Y,enumFromToNat(zero,suc(Y))),append(dodeca3(Y,enumFromToNat(zero,suc(Y))),append(cons(pair2(suc(Y),add(add(suc(Y),suc(Y)),Y)),dodeca4(Y,enumFromToNat(zero,Y))),append(dodeca5(Y,enumFromToNat(zero,suc(Y))),cons(pair2(add(add(add(suc(Y),suc(Y)),suc(Y)),Y),add(add(add(suc(Y),suc(Y)),suc(Y)),zero)),dodeca6(Y,enumFromToNat(zero,Y)))))))) ) ).

tff(goal_060,conjecture,
    ? [A] :
      ( colouring2(dodeca7(five),A)
      & and2(formula(A)) ) ).

%------------------------------------------------------------------------------