TPTP Problem File: SWW622_2.p
View Solutions
- Solve Problem
%------------------------------------------------------------------------------
% File : SWW622_2 : TPTP v9.0.0. Released v6.1.0.
% Domain : Software Verification
% Problem : Mergesort array-T-WP parameter mergesort rec
% Version : Especial : Let and conditional terms encoded away.
% English :
% Refs : [Fil14] Filliatre (2014), Email to Geoff Sutcliffe
% : [BF+] Bobot et al. (URL), Toccata: Certified Programs and Cert
% Source : [Fil14]
% Names : mergesort_array-T-WP_parameter_mergesort_rec [Fil14]
% Status : Theorem
% Rating : 0.75 v8.2.0, 0.62 v7.5.0, 0.60 v7.4.0, 0.38 v7.3.0, 0.33 v7.0.0, 0.71 v6.4.0, 0.33 v6.3.0, 0.71 v6.2.0, 0.75 v6.1.0
% Syntax : Number of formulae : 145 ( 33 unt; 57 typ; 0 def)
% Number of atoms : 275 ( 72 equ)
% Maximal formula atoms : 45 ( 1 avg)
% Number of connectives : 200 ( 13 ~; 3 |; 89 &)
% ( 11 <=>; 84 =>; 0 <=; 0 <~>)
% Maximal formula depth : 29 ( 6 avg)
% Maximal term depth : 5 ( 1 avg)
% Number arithmetic : 374 ( 122 atm; 49 fun; 85 num; 118 var)
% Number of types : 9 ( 7 usr; 1 ari)
% Number of type conns : 111 ( 41 >; 70 *; 0 +; 0 <<)
% Number of predicates : 16 ( 13 usr; 0 prp; 1-7 aty)
% Number of functors : 44 ( 37 usr; 12 con; 0-5 aty)
% Number of variables : 287 ( 285 !; 2 ?; 287 :)
% SPC : TF0_THM_EQU_ARI
% Comments :
%------------------------------------------------------------------------------
tff(uni,type,
uni: $tType ).
tff(ty,type,
ty: $tType ).
tff(sort,type,
sort1: ( ty * uni ) > $o ).
tff(witness,type,
witness1: ty > uni ).
tff(witness_sort1,axiom,
! [A: ty] : sort1(A,witness1(A)) ).
tff(int,type,
int: ty ).
tff(real,type,
real: ty ).
tff(bool,type,
bool1: $tType ).
tff(bool1,type,
bool: ty ).
tff(true,type,
true1: bool1 ).
tff(false,type,
false1: bool1 ).
tff(match_bool,type,
match_bool1: ( ty * bool1 * uni * uni ) > uni ).
tff(match_bool_sort2,axiom,
! [A: ty,X: bool1,X1: uni,X2: uni] : sort1(A,match_bool1(A,X,X1,X2)) ).
tff(match_bool_True,axiom,
! [A: ty,Z: uni,Z1: uni] :
( sort1(A,Z)
=> ( match_bool1(A,true1,Z,Z1) = Z ) ) ).
tff(match_bool_False,axiom,
! [A: ty,Z: uni,Z1: uni] :
( sort1(A,Z1)
=> ( match_bool1(A,false1,Z,Z1) = Z1 ) ) ).
tff(true_False,axiom,
true1 != false1 ).
tff(bool_inversion,axiom,
! [U: bool1] :
( ( U = true1 )
| ( U = false1 ) ) ).
tff(tuple0,type,
tuple02: $tType ).
tff(tuple01,type,
tuple0: ty ).
tff(tuple02,type,
tuple03: tuple02 ).
tff(tuple0_inversion,axiom,
! [U: tuple02] : ( U = tuple03 ) ).
tff(qtmark,type,
qtmark: ty ).
tff(compatOrderMult,axiom,
! [X: $int,Y: $int,Z: $int] :
( $lesseq(X,Y)
=> ( $lesseq(0,Z)
=> $lesseq($product(X,Z),$product(Y,Z)) ) ) ).
tff(map,type,
map: ( ty * ty ) > ty ).
tff(get,type,
get: ( ty * ty * uni * uni ) > uni ).
tff(get_sort4,axiom,
! [A: ty,B: ty,X: uni,X1: uni] : sort1(B,get(B,A,X,X1)) ).
tff(set,type,
set: ( ty * ty * uni * uni * uni ) > uni ).
tff(set_sort4,axiom,
! [A: ty,B: ty,X: uni,X1: uni,X2: uni] : sort1(map(A,B),set(B,A,X,X1,X2)) ).
tff(select_eq,axiom,
! [A: ty,B: ty,M: uni,A1: uni,A2: uni,B1: uni] :
( sort1(B,B1)
=> ( ( A1 = A2 )
=> ( get(B,A,set(B,A,M,A1,B1),A2) = B1 ) ) ) ).
tff(select_neq,axiom,
! [A: ty,B: ty,M: uni,A1: uni,A2: uni] :
( sort1(A,A1)
=> ( sort1(A,A2)
=> ! [B1: uni] :
( ( A1 != A2 )
=> ( get(B,A,set(B,A,M,A1,B1),A2) = get(B,A,M,A2) ) ) ) ) ).
tff(const1,type,
const: ( ty * ty * uni ) > uni ).
tff(const_sort2,axiom,
! [A: ty,B: ty,X: uni] : sort1(map(A,B),const(B,A,X)) ).
tff(const,axiom,
! [A: ty,B: ty,B1: uni,A1: uni] :
( sort1(B,B1)
=> ( get(B,A,const(B,A,B1),A1) = B1 ) ) ).
tff(array,type,
array: ty > ty ).
tff(mk_array,type,
mk_array1: ( ty * $int * uni ) > uni ).
tff(mk_array_sort2,axiom,
! [A: ty,X: $int,X1: uni] : sort1(array(A),mk_array1(A,X,X1)) ).
tff(length,type,
length1: ( ty * uni ) > $int ).
tff(length_def1,axiom,
! [A: ty,U: $int,U1: uni] : ( length1(A,mk_array1(A,U,U1)) = U ) ).
tff(elts,type,
elts: ( ty * uni ) > uni ).
tff(elts_sort2,axiom,
! [A: ty,X: uni] : sort1(map(int,A),elts(A,X)) ).
tff(elts_def1,axiom,
! [A: ty,U: $int,U1: uni] :
( sort1(map(int,A),U1)
=> ( elts(A,mk_array1(A,U,U1)) = U1 ) ) ).
tff(array_inversion1,axiom,
! [A: ty,U: uni] : ( U = mk_array1(A,length1(A,U),elts(A,U)) ) ).
tff(get1,type,
get2: ( ty * uni * $int ) > uni ).
tff(get_sort5,axiom,
! [A: ty,X: uni,X1: $int] : sort1(A,get2(A,X,X1)) ).
tff(t2tb,type,
t2tb: $int > uni ).
tff(t2tb_sort4,axiom,
! [X: $int] : sort1(int,t2tb(X)) ).
tff(tb2t,type,
tb2t: uni > $int ).
tff(bridgeL,axiom,
! [I: $int] : ( tb2t(t2tb(I)) = I ) ).
tff(bridgeR,axiom,
! [J: uni] : ( t2tb(tb2t(J)) = J ) ).
tff(get_def,axiom,
! [A: ty,A1: uni,I: $int] : ( get2(A,A1,I) = get(A,int,elts(A,A1),t2tb(I)) ) ).
tff(set1,type,
set2: ( ty * uni * $int * uni ) > uni ).
tff(set_sort5,axiom,
! [A: ty,X: uni,X1: $int,X2: uni] : sort1(array(A),set2(A,X,X1,X2)) ).
tff(set_def,axiom,
! [A: ty,A1: uni,I: $int,V: uni] : ( set2(A,A1,I,V) = mk_array1(A,length1(A,A1),set(A,int,elts(A,A1),t2tb(I),V)) ) ).
tff(make,type,
make1: ( ty * $int * uni ) > uni ).
tff(make_sort2,axiom,
! [A: ty,X: $int,X1: uni] : sort1(array(A),make1(A,X,X1)) ).
tff(make_def,axiom,
! [A: ty,N: $int,V: uni] : ( make1(A,N,V) = mk_array1(A,N,const(A,int,V)) ) ).
tff(elt2,type,
elt2: $tType ).
tff(elt3,type,
elt3: ty ).
tff(le1,type,
le2: ( elt2 * elt2 ) > $o ).
tff(refl2,axiom,
! [X: elt2] : le2(X,X) ).
tff(trans2,axiom,
! [X: elt2,Y: elt2,Z: elt2] :
( le2(X,Y)
=> ( le2(Y,Z)
=> le2(X,Z) ) ) ).
tff(total2,axiom,
! [X: elt2,Y: elt2] :
( le2(X,Y)
| le2(Y,X) ) ).
tff(array_elt1,type,
array_elt1: $tType ).
tff(sorted_sub1,type,
sorted_sub2: ( array_elt1 * $int * $int ) > $o ).
tff(t2tb4,type,
t2tb4: array_elt1 > uni ).
tff(t2tb_sort5,axiom,
! [X: array_elt1] : sort1(array(elt3),t2tb4(X)) ).
tff(tb2t4,type,
tb2t4: uni > array_elt1 ).
tff(bridgeL4,axiom,
! [I: array_elt1] : ( tb2t4(t2tb4(I)) = I ) ).
tff(bridgeR4,axiom,
! [J: uni] : ( t2tb4(tb2t4(J)) = J ) ).
tff(t2tb5,type,
t2tb5: elt2 > uni ).
tff(t2tb_sort6,axiom,
! [X: elt2] : sort1(elt3,t2tb5(X)) ).
tff(tb2t5,type,
tb2t5: uni > elt2 ).
tff(bridgeL5,axiom,
! [I: elt2] : ( tb2t5(t2tb5(I)) = I ) ).
tff(bridgeR5,axiom,
! [J: uni] :
( sort1(elt3,J)
=> ( t2tb5(tb2t5(J)) = J ) ) ).
tff(sorted_sub_def1,axiom,
! [A: array_elt1,L: $int,U: $int] :
( sorted_sub2(A,L,U)
<=> ! [I1: $int,I2: $int] :
( ( $lesseq(L,I1)
& $lesseq(I1,I2)
& $less(I2,U) )
=> le2(tb2t5(get2(elt3,t2tb4(A),I1)),tb2t5(get2(elt3,t2tb4(A),I2))) ) ) ).
tff(sorted1,type,
sorted2: array_elt1 > $o ).
tff(sorted_def1,axiom,
! [A: array_elt1] :
( sorted2(A)
<=> ! [I1: $int,I2: $int] :
( ( $lesseq(0,I1)
& $lesseq(I1,I2)
& $less(I2,length1(elt3,t2tb4(A))) )
=> le2(tb2t5(get2(elt3,t2tb4(A),I1)),tb2t5(get2(elt3,t2tb4(A),I2))) ) ) ).
tff(ref,type,
ref: ty > ty ).
tff(mk_ref,type,
mk_ref: ( ty * uni ) > uni ).
tff(mk_ref_sort2,axiom,
! [A: ty,X: uni] : sort1(ref(A),mk_ref(A,X)) ).
tff(contents,type,
contents: ( ty * uni ) > uni ).
tff(contents_sort2,axiom,
! [A: ty,X: uni] : sort1(A,contents(A,X)) ).
tff(contents_def2,axiom,
! [A: ty,U: uni] :
( sort1(A,U)
=> ( contents(A,mk_ref(A,U)) = U ) ) ).
tff(ref_inversion2,axiom,
! [A: ty,U: uni] :
( sort1(ref(A),U)
=> ( U = mk_ref(A,contents(A,U)) ) ) ).
tff(occ,type,
occ1: ( ty * uni * uni * $int * $int ) > $int ).
tff(occ_empty,axiom,
! [A: ty,V: uni,M: uni,L: $int,U: $int] :
( $lesseq(U,L)
=> ( occ1(A,V,M,L,U) = 0 ) ) ).
tff(occ_right_no_add,axiom,
! [A: ty,V: uni,M: uni,L: $int,U: $int] :
( sort1(A,V)
=> ( $less(L,U)
=> ( ( get(A,int,M,t2tb($difference(U,1))) != V )
=> ( occ1(A,V,M,L,U) = occ1(A,V,M,L,$difference(U,1)) ) ) ) ) ).
tff(occ_right_add,axiom,
! [A: ty,V: uni,M: uni,L: $int,U: $int] :
( $less(L,U)
=> ( ( get(A,int,M,t2tb($difference(U,1))) = V )
=> ( occ1(A,V,M,L,U) = $sum(1,occ1(A,V,M,L,$difference(U,1))) ) ) ) ).
tff(occ_bounds,axiom,
! [A: ty,V: uni,M: uni,L: $int,U: $int] :
( $lesseq(L,U)
=> ( $lesseq(0,occ1(A,V,M,L,U))
& $lesseq(occ1(A,V,M,L,U),$difference(U,L)) ) ) ).
tff(occ_append,axiom,
! [A: ty,V: uni,M: uni,L: $int,Mid: $int,U: $int] :
( ( $lesseq(L,Mid)
& $lesseq(Mid,U) )
=> ( occ1(A,V,M,L,U) = $sum(occ1(A,V,M,L,Mid),occ1(A,V,M,Mid,U)) ) ) ).
tff(occ_neq,axiom,
! [A: ty,V: uni,M: uni,L: $int,U: $int] :
( sort1(A,V)
=> ( ! [I: $int] :
( ( $lesseq(L,I)
& $less(I,U) )
=> ( get(A,int,M,t2tb(I)) != V ) )
=> ( occ1(A,V,M,L,U) = 0 ) ) ) ).
tff(occ_exists,axiom,
! [A: ty,V: uni,M: uni,L: $int,U: $int] :
( sort1(A,V)
=> ( $less(0,occ1(A,V,M,L,U))
=> ? [I: $int] :
( $lesseq(L,I)
& $less(I,U)
& ( get(A,int,M,t2tb(I)) = V ) ) ) ) ).
tff(occ_pos,axiom,
! [A: ty,M: uni,L: $int,U: $int,I: $int] :
( ( $lesseq(L,I)
& $less(I,U) )
=> $less(0,occ1(A,get(A,int,M,t2tb(I)),M,L,U)) ) ).
tff(occ_eq,axiom,
! [A: ty,V: uni,M1: uni,M2: uni,L: $int,U: $int] :
( ! [I: $int] :
( ( $lesseq(L,I)
& $less(I,U) )
=> ( get(A,int,M1,t2tb(I)) = get(A,int,M2,t2tb(I)) ) )
=> ( occ1(A,V,M1,L,U) = occ1(A,V,M2,L,U) ) ) ).
tff(permut,type,
permut2: ( ty * uni * uni * $int * $int ) > $o ).
tff(permut_def,axiom,
! [A: ty,M1: uni,M2: uni,L: $int,U: $int] :
( ( permut2(A,M1,M2,L,U)
=> ! [V: uni] : ( occ1(A,V,M1,L,U) = occ1(A,V,M2,L,U) ) )
& ( ! [V: uni] :
( sort1(A,V)
=> ( occ1(A,V,M1,L,U) = occ1(A,V,M2,L,U) ) )
=> permut2(A,M1,M2,L,U) ) ) ).
tff(permut_trans,axiom,
! [A: ty,A1: uni,A2: uni,A3: uni,L: $int,U: $int] :
( permut2(A,A1,A2,L,U)
=> ( permut2(A,A2,A3,L,U)
=> permut2(A,A1,A3,L,U) ) ) ).
tff(permut_exists,axiom,
! [A: ty,A1: uni,A2: uni,L: $int,U: $int,I: $int] :
( permut2(A,A1,A2,L,U)
=> ( ( $lesseq(L,I)
& $less(I,U) )
=> ? [J: $int] :
( $lesseq(L,J)
& $less(J,U)
& ( get(A,int,A1,t2tb(J)) = get(A,int,A2,t2tb(I)) ) ) ) ) ).
tff(map_eq_sub,type,
map_eq_sub1: ( ty * uni * uni * $int * $int ) > $o ).
tff(map_eq_sub_def,axiom,
! [A: ty,A1: uni,A2: uni,L: $int,U: $int] :
( map_eq_sub1(A,A1,A2,L,U)
<=> ! [I: $int] :
( ( $lesseq(L,I)
& $less(I,U) )
=> ( get(A,int,A1,t2tb(I)) = get(A,int,A2,t2tb(I)) ) ) ) ).
tff(array_eq_sub,type,
array_eq_sub1: ( ty * uni * uni * $int * $int ) > $o ).
tff(array_eq_sub_def,axiom,
! [A: ty,A1: uni,A2: uni,L: $int,U: $int] :
( array_eq_sub1(A,A1,A2,L,U)
<=> ( ( length1(A,A1) = length1(A,A2) )
& $lesseq(0,L)
& $lesseq(L,length1(A,A1))
& $lesseq(0,U)
& $lesseq(U,length1(A,A1))
& map_eq_sub1(A,elts(A,A1),elts(A,A2),L,U) ) ) ).
tff(array_eq,type,
array_eq: ( ty * uni * uni ) > $o ).
tff(array_eq_def,axiom,
! [A: ty,A1: uni,A2: uni] :
( array_eq(A,A1,A2)
<=> ( ( length1(A,A1) = length1(A,A2) )
& map_eq_sub1(A,elts(A,A1),elts(A,A2),0,length1(A,A1)) ) ) ).
tff(exchange,type,
exchange2: ( ty * uni * uni * $int * $int * $int * $int ) > $o ).
tff(exchange_def,axiom,
! [A: ty,A1: uni,A2: uni,L: $int,U: $int,I: $int,J: $int] :
( exchange2(A,A1,A2,L,U,I,J)
<=> ( $lesseq(L,I)
& $less(I,U)
& $lesseq(L,J)
& $less(J,U)
& ( get(A,int,A1,t2tb(I)) = get(A,int,A2,t2tb(J)) )
& ( get(A,int,A1,t2tb(J)) = get(A,int,A2,t2tb(I)) )
& ! [K: $int] :
( ( $lesseq(L,K)
& $less(K,U) )
=> ( ( K != I )
=> ( ( K != J )
=> ( get(A,int,A1,t2tb(K)) = get(A,int,A2,t2tb(K)) ) ) ) ) ) ) ).
tff(exchange_set,axiom,
! [A: ty,A1: uni,L: $int,U: $int,I: $int,J: $int] :
( ( $lesseq(L,I)
& $less(I,U) )
=> ( ( $lesseq(L,J)
& $less(J,U) )
=> exchange2(A,A1,set(A,int,set(A,int,A1,t2tb(I),get(A,int,A1,t2tb(J))),t2tb(J),get(A,int,A1,t2tb(I))),L,U,I,J) ) ) ).
tff(exchange1,type,
exchange3: ( ty * uni * uni * $int * $int ) > $o ).
tff(exchange_def1,axiom,
! [A: ty,A1: uni,A2: uni,I: $int,J: $int] :
( exchange3(A,A1,A2,I,J)
<=> ( ( length1(A,A1) = length1(A,A2) )
& exchange2(A,elts(A,A1),elts(A,A2),0,length1(A,A1),I,J) ) ) ).
tff(permut1,type,
permut3: ( ty * uni * uni * $int * $int ) > $o ).
tff(permut_def1,axiom,
! [A: ty,A1: uni,A2: uni,L: $int,U: $int] :
( permut3(A,A1,A2,L,U)
<=> ( ( length1(A,A1) = length1(A,A2) )
& $lesseq(0,L)
& $lesseq(L,length1(A,A1))
& $lesseq(0,U)
& $lesseq(U,length1(A,A1))
& permut2(A,elts(A,A1),elts(A,A2),L,U) ) ) ).
tff(permut_sub,type,
permut_sub1: ( ty * uni * uni * $int * $int ) > $o ).
tff(permut_sub_def,axiom,
! [A: ty,A1: uni,A2: uni,L: $int,U: $int] :
( permut_sub1(A,A1,A2,L,U)
<=> ( map_eq_sub1(A,elts(A,A1),elts(A,A2),0,L)
& permut3(A,A1,A2,L,U)
& map_eq_sub1(A,elts(A,A1),elts(A,A2),U,length1(A,A1)) ) ) ).
tff(permut_all,type,
permut_all: ( ty * uni * uni ) > $o ).
tff(permut_all_def,axiom,
! [A: ty,A1: uni,A2: uni] :
( permut_all(A,A1,A2)
<=> ( ( length1(A,A1) = length1(A,A2) )
& permut2(A,elts(A,A1),elts(A,A2),0,length1(A,A1)) ) ) ).
tff(exchange_permut_sub,axiom,
! [A: ty,A1: uni,A2: uni,I: $int,J: $int,L: $int,U: $int] :
( exchange3(A,A1,A2,I,J)
=> ( ( $lesseq(L,I)
& $less(I,U) )
=> ( ( $lesseq(L,J)
& $less(J,U) )
=> ( $lesseq(0,L)
=> ( $lesseq(U,length1(A,A1))
=> permut_sub1(A,A1,A2,L,U) ) ) ) ) ) ).
tff(permut_sub_weakening,axiom,
! [A: ty,A1: uni,A2: uni,L1: $int,U1: $int,L2: $int,U2: $int] :
( permut_sub1(A,A1,A2,L1,U1)
=> ( ( $lesseq(0,L2)
& $lesseq(L2,L1) )
=> ( ( $lesseq(U1,U2)
& $lesseq(U2,length1(A,A1)) )
=> permut_sub1(A,A1,A2,L2,U2) ) ) ) ).
tff(exchange_permut_all,axiom,
! [A: ty,A1: uni,A2: uni,I: $int,J: $int] :
( exchange3(A,A1,A2,I,J)
=> permut_all(A,A1,A2) ) ).
tff(abs,type,
abs: $int > $int ).
tff(abs_def,axiom,
! [X: $int] :
( ( $lesseq(0,X)
=> ( abs(X) = X ) )
& ( ~ $lesseq(0,X)
=> ( abs(X) = $uminus(X) ) ) ) ).
tff(abs_le,axiom,
! [X: $int,Y: $int] :
( $lesseq(abs(X),Y)
<=> ( $lesseq($uminus(Y),X)
& $lesseq(X,Y) ) ) ).
tff(abs_pos,axiom,
! [X: $int] : $lesseq(0,abs(X)) ).
tff(div,type,
div: ( $int * $int ) > $int ).
tff(mod,type,
mod: ( $int * $int ) > $int ).
tff(div_mod,axiom,
! [X: $int,Y: $int] :
( ( Y != 0 )
=> ( X = $sum($product(Y,div(X,Y)),mod(X,Y)) ) ) ).
tff(div_bound,axiom,
! [X: $int,Y: $int] :
( ( $lesseq(0,X)
& $less(0,Y) )
=> ( $lesseq(0,div(X,Y))
& $lesseq(div(X,Y),X) ) ) ).
tff(mod_bound,axiom,
! [X: $int,Y: $int] :
( ( Y != 0 )
=> ( $less($uminus(abs(Y)),mod(X,Y))
& $less(mod(X,Y),abs(Y)) ) ) ).
tff(div_sign_pos,axiom,
! [X: $int,Y: $int] :
( ( $lesseq(0,X)
& $less(0,Y) )
=> $lesseq(0,div(X,Y)) ) ).
tff(div_sign_neg,axiom,
! [X: $int,Y: $int] :
( ( $lesseq(X,0)
& $less(0,Y) )
=> $lesseq(div(X,Y),0) ) ).
tff(mod_sign_pos,axiom,
! [X: $int,Y: $int] :
( ( $lesseq(0,X)
& ( Y != 0 ) )
=> $lesseq(0,mod(X,Y)) ) ).
tff(mod_sign_neg,axiom,
! [X: $int,Y: $int] :
( ( $lesseq(X,0)
& ( Y != 0 ) )
=> $lesseq(mod(X,Y),0) ) ).
tff(rounds_toward_zero,axiom,
! [X: $int,Y: $int] :
( ( Y != 0 )
=> $lesseq(abs($product(div(X,Y),Y)),abs(X)) ) ).
tff(div_1,axiom,
! [X: $int] : ( div(X,1) = X ) ).
tff(mod_1,axiom,
! [X: $int] : ( mod(X,1) = 0 ) ).
tff(div_inf,axiom,
! [X: $int,Y: $int] :
( ( $lesseq(0,X)
& $less(X,Y) )
=> ( div(X,Y) = 0 ) ) ).
tff(mod_inf,axiom,
! [X: $int,Y: $int] :
( ( $lesseq(0,X)
& $less(X,Y) )
=> ( mod(X,Y) = X ) ) ).
tff(div_mult,axiom,
! [X: $int,Y: $int,Z: $int] :
( ( $less(0,X)
& $lesseq(0,Y)
& $lesseq(0,Z) )
=> ( div($sum($product(X,Y),Z),X) = $sum(Y,div(Z,X)) ) ) ).
tff(mod_mult,axiom,
! [X: $int,Y: $int,Z: $int] :
( ( $less(0,X)
& $lesseq(0,Y)
& $lesseq(0,Z) )
=> ( mod($sum($product(X,Y),Z),X) = mod(Z,X) ) ) ).
tff(map_int_elt1,type,
map_int_elt1: $tType ).
tff(t2tb6,type,
t2tb6: map_int_elt1 > uni ).
tff(t2tb_sort7,axiom,
! [X: map_int_elt1] : sort1(map(int,elt3),t2tb6(X)) ).
tff(tb2t6,type,
tb2t6: uni > map_int_elt1 ).
tff(bridgeL6,axiom,
! [I: map_int_elt1] : ( tb2t6(t2tb6(I)) = I ) ).
tff(bridgeR6,axiom,
! [J: uni] :
( sort1(map(int,elt3),J)
=> ( t2tb6(tb2t6(J)) = J ) ) ).
tff(wP_parameter_mergesort_rec,conjecture,
! [A: $int,A1: map_int_elt1,Tmp: $int,L: $int,R: $int] :
( ( $lesseq(0,A)
& $lesseq(0,Tmp)
& $lesseq(0,L)
& $lesseq(L,R)
& $lesseq(R,A)
& ( A = Tmp ) )
=> ( $less(L,$difference(R,1))
=> ( ( 2 != 0 )
=> ( ( $lesseq(L,$sum(L,div($difference(R,L),2)))
& $less($sum(L,div($difference(R,L),2)),R) )
=> ( ( $lesseq(0,L)
& $lesseq(L,$sum(L,div($difference(R,L),2)))
& $lesseq($sum(L,div($difference(R,L),2)),A)
& ( A = Tmp ) )
=> ! [A2: map_int_elt1] :
( ( $lesseq(0,A)
& $lesseq(0,Tmp)
& sorted_sub2(tb2t4(mk_array1(elt3,A,t2tb6(A2))),L,$sum(L,div($difference(R,L),2)))
& permut_sub1(elt3,mk_array1(elt3,A,t2tb6(A1)),mk_array1(elt3,A,t2tb6(A2)),L,$sum(L,div($difference(R,L),2))) )
=> ( permut_sub1(elt3,mk_array1(elt3,A,t2tb6(A1)),mk_array1(elt3,A,t2tb6(A2)),L,R)
=> ( ( $lesseq(0,$sum(L,div($difference(R,L),2)))
& $lesseq($sum(L,div($difference(R,L),2)),R)
& $lesseq(R,A)
& ( A = Tmp ) )
=> ! [A3: map_int_elt1] :
( ( $lesseq(0,A)
& $lesseq(0,Tmp)
& sorted_sub2(tb2t4(mk_array1(elt3,A,t2tb6(A3))),$sum(L,div($difference(R,L),2)),R)
& permut_sub1(elt3,mk_array1(elt3,A,t2tb6(A2)),mk_array1(elt3,A,t2tb6(A3)),$sum(L,div($difference(R,L),2)),R) )
=> ( permut_sub1(elt3,mk_array1(elt3,A,t2tb6(A2)),mk_array1(elt3,A,t2tb6(A3)),L,R)
=> ( ( $lesseq(0,L)
& $lesseq(L,$sum(L,div($difference(R,L),2)))
& $lesseq($sum(L,div($difference(R,L),2)),R)
& $lesseq(R,Tmp)
& ( Tmp = A )
& sorted_sub2(tb2t4(mk_array1(elt3,A,t2tb6(A3))),L,$sum(L,div($difference(R,L),2)))
& sorted_sub2(tb2t4(mk_array1(elt3,A,t2tb6(A3))),$sum(L,div($difference(R,L),2)),R) )
=> ! [A4: map_int_elt1] :
( ( $lesseq(0,Tmp)
& $lesseq(0,A)
& sorted_sub2(tb2t4(mk_array1(elt3,A,t2tb6(A4))),L,R)
& permut3(elt3,mk_array1(elt3,A,t2tb6(A3)),mk_array1(elt3,A,t2tb6(A4)),L,R)
& ! [I: $int] :
( ( ( $lesseq(0,I)
& $less(I,L) )
| ( $lesseq(R,I)
& $less(I,A) ) )
=> ( tb2t5(get(elt3,int,t2tb6(A4),t2tb(I))) = tb2t5(get(elt3,int,t2tb6(A3),t2tb(I))) ) ) )
=> permut_sub1(elt3,mk_array1(elt3,A,t2tb6(A1)),mk_array1(elt3,A,t2tb6(A4)),L,R) ) ) ) ) ) ) ) ) ) ) ) ) ).
%------------------------------------------------------------------------------