TSTP Solution File: ALG356-1 by SNARK---20120808r022

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SNARK---20120808r022
% Problem  : ALG356-1 : TPTP v8.1.0. Released v4.1.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run-snark %s %d

% Computer : n025.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 600s
% DateTime : Thu Jul 14 18:00:37 EDT 2022

% Result   : Unsatisfiable 9.82s 10.09s
% Output   : Refutation 9.93s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    3
%            Number of leaves      :   17
% Syntax   : Number of clauses     :   28 (  19 unt;   3 nHn;  15 RR)
%            Number of literals    :   43 (  29 equ;  16 neg)
%            Maximal clause size   :    3 (   1 avg)
%            Maximal term depth    :    6 (   2 avg)
%            Number of predicates  :    7 (   5 usr;   1 prp; 0-2 aty)
%            Number of functors    :   12 (  12 usr;   3 con; 0-3 aty)
%            Number of variables   :   35 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(cls_eq__divide__imp_0,axiom,
    ( ~ class_Ring__and__Field_Ofield(X)
    | Y = c_HOL_Ozero__class_Ozero(X)
    | Z = c_HOL_Oinverse__class_Odivide(c_HOL_Otimes__class_Otimes(Z,Y,X),Y,X) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',cls_eq__divide__imp_0) ).

cnf(cls_norm__mult_0,axiom,
    ( ~ class_RealVector_Oreal__normed__div__algebra(X)
    | c_RealVector_Onorm__class_Onorm(c_HOL_Otimes__class_Otimes(Y,Z,X),X) = c_HOL_Otimes__class_Otimes(c_RealVector_Onorm__class_Onorm(Y,X),c_RealVector_Onorm__class_Onorm(Z,X),tc_RealDef_Oreal) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',cls_norm__mult_0) ).

cnf(cls_real__mult__right__cancel_0,axiom,
    ( c_HOL_Otimes__class_Otimes(X,Y,tc_RealDef_Oreal) != c_HOL_Otimes__class_Otimes(Z,Y,tc_RealDef_Oreal)
    | Y = c_HOL_Ozero__class_Ozero(tc_RealDef_Oreal)
    | X = Z ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',cls_real__mult__right__cancel_0) ).

cnf(cls_norm__eq__zero_0,axiom,
    ( ~ class_RealVector_Oreal__normed__vector(X)
    | c_RealVector_Onorm__class_Onorm(Y,X) != c_HOL_Ozero__class_Ozero(tc_RealDef_Oreal)
    | Y = c_HOL_Ozero__class_Ozero(X) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',cls_norm__eq__zero_0) ).

cnf(cls_Re_Ozero_0,axiom,
    c_Complex_ORe(c_HOL_Ozero__class_Ozero(tc_Complex_Ocomplex)) = c_HOL_Ozero__class_Ozero(tc_RealDef_Oreal),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',cls_Re_Ozero_0) ).

cnf(cls_complex__of__real__def_0,axiom,
    c_RealVector_Oof__real(X,tc_Complex_Ocomplex) = c_Complex_Ocomplex_OComplex(X,c_HOL_Ozero__class_Ozero(tc_RealDef_Oreal)),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',cls_complex__of__real__def_0) ).

cnf(448,plain,
    c_RealVector_Oof__real(X,tc_Complex_Ocomplex) = c_Complex_Ocomplex_OComplex(X,c_Complex_ORe(c_HOL_Ozero__class_Ozero(tc_Complex_Ocomplex))),
    inference('REWRITE',[status(thm)],[cls_complex__of__real__def_0,cls_Re_Ozero_0,theory(equality)]) ).

cnf(cls_b_0,axiom,
    v_b != c_HOL_Ozero__class_Ozero(tc_Complex_Ocomplex),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',cls_b_0) ).

cnf(cls_norm__of__real_0,axiom,
    ( ~ class_RealVector_Oreal__normed__algebra__1(X)
    | c_RealVector_Onorm__class_Onorm(c_RealVector_Oof__real(Y,X),X) = c_HOL_Oabs__class_Oabs(Y,tc_RealDef_Oreal) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',cls_norm__of__real_0) ).

cnf(cls_abs__norm__cancel_0,axiom,
    ( ~ class_RealVector_Oreal__normed__vector(X)
    | c_HOL_Oabs__class_Oabs(c_RealVector_Onorm__class_Onorm(Y,X),tc_RealDef_Oreal) = c_RealVector_Onorm__class_Onorm(Y,X) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',cls_abs__norm__cancel_0) ).

cnf(cls_real__mult__1_0,axiom,
    c_HOL_Otimes__class_Otimes(c_HOL_Oone__class_Oone(tc_RealDef_Oreal),X,tc_RealDef_Oreal) = X,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',cls_real__mult__1_0) ).

cnf(cls_mult__frac__num_0,axiom,
    ( ~ class_Ring__and__Field_Ofield(X)
    | ~ class_Ring__and__Field_Odivision__by__zero(X)
    | c_HOL_Otimes__class_Otimes(c_HOL_Oinverse__class_Odivide(Y,Z,X),U,X) = c_HOL_Oinverse__class_Odivide(c_HOL_Otimes__class_Otimes(Y,U,X),Z,X) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',cls_mult__frac__num_0) ).

cnf(cls_conjecture_0,negated_conjecture,
    c_RealVector_Onorm__class_Onorm(c_HOL_Oinverse__class_Odivide(c_RealVector_Oof__real(c_RealVector_Onorm__class_Onorm(v_b,tc_Complex_Ocomplex),tc_Complex_Ocomplex),v_b,tc_Complex_Ocomplex),tc_Complex_Ocomplex) != c_HOL_Oone__class_Oone(tc_RealDef_Oreal),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',cls_conjecture_0) ).

cnf(796,plain,
    c_RealVector_Onorm__class_Onorm(c_HOL_Oinverse__class_Odivide(c_Complex_Ocomplex_OComplex(c_RealVector_Onorm__class_Onorm(v_b,tc_Complex_Ocomplex),c_Complex_ORe(c_HOL_Ozero__class_Ozero(tc_Complex_Ocomplex))),v_b,tc_Complex_Ocomplex),tc_Complex_Ocomplex) != c_HOL_Oone__class_Oone(tc_RealDef_Oreal),
    inference('REWRITE',[status(thm)],[cls_conjecture_0,448,theory(equality)]) ).

cnf(clsarity_Complex__Ocomplex__RealVector_Oreal__normed__div__algebra,axiom,
    class_RealVector_Oreal__normed__div__algebra(tc_Complex_Ocomplex),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',clsarity_Complex__Ocomplex__RealVector_Oreal__normed__div__algebra) ).

cnf(clsarity_Complex__Ocomplex__RealVector_Oreal__normed__algebra__1,axiom,
    class_RealVector_Oreal__normed__algebra__1(tc_Complex_Ocomplex),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',clsarity_Complex__Ocomplex__RealVector_Oreal__normed__algebra__1) ).

cnf(clsarity_Complex__Ocomplex__Ring__and__Field_Odivision__by__zero,axiom,
    class_Ring__and__Field_Odivision__by__zero(tc_Complex_Ocomplex),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',clsarity_Complex__Ocomplex__Ring__and__Field_Odivision__by__zero) ).

cnf(clsarity_Complex__Ocomplex__RealVector_Oreal__normed__vector,axiom,
    class_RealVector_Oreal__normed__vector(tc_Complex_Ocomplex),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',clsarity_Complex__Ocomplex__RealVector_Oreal__normed__vector) ).

cnf(clsarity_Complex__Ocomplex__Ring__and__Field_Ofield,axiom,
    class_Ring__and__Field_Ofield(tc_Complex_Ocomplex),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',clsarity_Complex__Ocomplex__Ring__and__Field_Ofield) ).

cnf(1072,plain,
    ( c_HOL_Otimes__class_Otimes(X,Y,tc_RealDef_Oreal) != c_HOL_Otimes__class_Otimes(Z,Y,tc_RealDef_Oreal)
    | Y = c_Complex_ORe(c_HOL_Ozero__class_Ozero(tc_Complex_Ocomplex))
    | X = Z ),
    inference('REWRITE',[status(thm)],[cls_real__mult__right__cancel_0,cls_Re_Ozero_0,theory(equality)]) ).

cnf(1073,plain,
    ( ~ class_RealVector_Oreal__normed__vector(X)
    | c_RealVector_Onorm__class_Onorm(Y,X) != c_Complex_ORe(c_HOL_Ozero__class_Ozero(tc_Complex_Ocomplex))
    | Y = c_HOL_Ozero__class_Ozero(X) ),
    inference('REWRITE',[status(thm)],[cls_norm__eq__zero_0,cls_Re_Ozero_0,theory(equality)]) ).

cnf(1436,plain,
    c_RealVector_Onorm__class_Onorm(c_Complex_Ocomplex_OComplex(X,c_Complex_ORe(c_HOL_Ozero__class_Ozero(tc_Complex_Ocomplex))),tc_Complex_Ocomplex) = c_HOL_Oabs__class_Oabs(X,tc_RealDef_Oreal),
    inference('REWRITE',[status(thm)],[inference('HYPERRESOLVE',[status(thm)],[cls_norm__of__real_0,clsarity_Complex__Ocomplex__RealVector_Oreal__normed__algebra__1]),448,theory(equality)]) ).

cnf(1443,plain,
    c_HOL_Oabs__class_Oabs(c_RealVector_Onorm__class_Onorm(X,tc_Complex_Ocomplex),tc_RealDef_Oreal) = c_RealVector_Onorm__class_Onorm(X,tc_Complex_Ocomplex),
    inference('HYPERRESOLVE',[status(thm)],[cls_abs__norm__cancel_0,clsarity_Complex__Ocomplex__RealVector_Oreal__normed__vector]) ).

cnf(1656,plain,
    c_RealVector_Onorm__class_Onorm(v_b,tc_Complex_Ocomplex) != c_Complex_ORe(c_HOL_Ozero__class_Ozero(tc_Complex_Ocomplex)),
    inference('UR-RESOLVE',[status(thm)],[1073,clsarity_Complex__Ocomplex__RealVector_Oreal__normed__vector,cls_b_0]) ).

cnf(1706,plain,
    X = c_HOL_Oinverse__class_Odivide(c_HOL_Otimes__class_Otimes(X,v_b,tc_Complex_Ocomplex),v_b,tc_Complex_Ocomplex),
    inference('UR-RESOLVE',[status(thm)],[cls_eq__divide__imp_0,clsarity_Complex__Ocomplex__Ring__and__Field_Ofield,cls_b_0]) ).

cnf(1715,plain,
    c_RealVector_Onorm__class_Onorm(c_HOL_Otimes__class_Otimes(X,Y,tc_Complex_Ocomplex),tc_Complex_Ocomplex) = c_HOL_Otimes__class_Otimes(c_RealVector_Onorm__class_Onorm(X,tc_Complex_Ocomplex),c_RealVector_Onorm__class_Onorm(Y,tc_Complex_Ocomplex),tc_RealDef_Oreal),
    inference('HYPERRESOLVE',[status(thm)],[cls_norm__mult_0,clsarity_Complex__Ocomplex__RealVector_Oreal__normed__div__algebra]) ).

cnf(1858,plain,
    c_HOL_Otimes__class_Otimes(c_HOL_Oinverse__class_Odivide(X,Y,tc_Complex_Ocomplex),Z,tc_Complex_Ocomplex) = c_HOL_Oinverse__class_Odivide(c_HOL_Otimes__class_Otimes(X,Z,tc_Complex_Ocomplex),Y,tc_Complex_Ocomplex),
    inference('HYPERRESOLVE',[status(thm)],[cls_mult__frac__num_0,clsarity_Complex__Ocomplex__Ring__and__Field_Ofield,clsarity_Complex__Ocomplex__Ring__and__Field_Odivision__by__zero]) ).

cnf(10817,plain,
    $false,
    inference('REWRITE',[status(thm)],[inference('UR-RESOLVE',[status(thm)],[1072,1656,796]),cls_real__mult__1_0,1443,1436,1706,1858,1715,theory(equality)]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.09/0.11  % Problem  : ALG356-1 : TPTP v8.1.0. Released v4.1.0.
% 0.09/0.12  % Command  : run-snark %s %d
% 0.12/0.33  % Computer : n025.cluster.edu
% 0.12/0.33  % Model    : x86_64 x86_64
% 0.12/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33  % Memory   : 8042.1875MB
% 0.12/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33  % CPULimit : 300
% 0.12/0.33  % WCLimit  : 600
% 0.12/0.33  % DateTime : Thu Jun  9 04:33:20 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 0.18/0.44  /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.18/0.45  * 
% 0.18/0.45  * 
% 0.18/0.46  #<PACKAGE "SNARK-USER">
% 0.18/0.46  * 
% 0.18/0.46  SNARK-TPTP-OPTIONS
% 0.18/0.46  * 
% 0.18/0.46  ((AGENDA-LENGTH-LIMIT NIL) (AGENDA-LENGTH-BEFORE-SIMPLIFICATION-LIMIT NIL)
% 0.18/0.46   (USE-HYPERRESOLUTION T) (USE-UR-RESOLUTION T) (USE-PARAMODULATION T)
% 0.18/0.46   (USE-FACTORING :POS)
% 0.18/0.46   (USE-LITERAL-ORDERING-WITH-HYPERRESOLUTION 'LITERAL-ORDERING-P)
% 0.18/0.46   (USE-LITERAL-ORDERING-WITH-PARAMODULATION 'LITERAL-ORDERING-P)
% 0.18/0.46   (ORDERING-FUNCTIONS>CONSTANTS T) (ASSERT-CONTEXT :CURRENT)
% 0.18/0.46   (RUN-TIME-LIMIT 300) (LISTEN-FOR-COMMANDS NIL)
% 0.18/0.46   (USE-CLOSURE-WHEN-SATISFIABLE T) (PRINT-ROWS-WHEN-GIVEN NIL)
% 0.18/0.46   (PRINT-ROWS-WHEN-DERIVED NIL) (PRINT-UNORIENTABLE-ROWS NIL)
% 0.18/0.46   (PRINT-ROW-WFFS-PRETTILY NIL) (PRINT-FINAL-ROWS :TPTP)
% 0.18/0.46   (PRINT-OPTIONS-WHEN-STARTING NIL) (USE-VARIABLE-NAME-SORTS NIL)
% 0.18/0.46   (USE-PURITY-TEST T) (USE-RELEVANCE-TEST T) (DECLARE-TPTP-SYMBOLS1)
% 0.18/0.46   (DECLARE-TPTP-SYMBOLS2))
% 0.18/0.46  * 
% 0.18/0.46  "."
% 0.18/0.46  * 
% 0.18/0.46  ; Begin refute-file /export/starexec/sandbox/benchmark/theBenchmark.p 2022-06-09T04:33:20
% 0.18/0.46  ; Running SNARK from /davis/home/graph/tptp/Systems/SNARK---20120808r022/Source/snark-system.lisp in SBCL 1.0.12 on n025.cluster.edu at 2022-06-09T04:33:20
% 0.54/0.72  WARNING:
% 0.54/0.72     |class_Lattices_Oboolean__algebra| is a 1-ary relation that occurs only negatively; disabling rows that contain it.
% 0.54/0.72  WARNING:
% 0.54/0.72     |class_OrderedGroup_Oab__semigroup__idem__mult| is a 1-ary relation that occurs only negatively; disabling rows that contain it.
% 9.82/10.09  
% 9.82/10.09  
% 9.82/10.09  #||
% 9.82/10.09  % SZS status Unsatisfiable for /export/starexec/sandbox/benchmark/theBenchmark.p
% 9.82/10.09  % SZS output start Refutation
% See solution above
% 9.93/10.15  ||#
% 9.93/10.15  
% 9.93/10.15  ; Summary of computation:
% 9.93/10.15  ;     55590 formulas have been input or derived (from 1468 formulas).
% 9.93/10.15  ;     10817 (19%) were retained.  Of these,
% 9.93/10.15  ;          604 ( 6%) were simplified or subsumed later,
% 9.93/10.15  ;        10213 (94%) are still being kept.
% 9.93/10.15  ; 
% 9.93/10.15  ; Run time in seconds excluding printing time:
% 9.93/10.15  ;     0.216   2%   Read assertion file          (1 call)
% 9.93/10.15  ;     0.025   0%   Assert                       (1,206 calls)
% 9.93/10.16  ;     1.699  18%   Process new row              (48,468 calls)
% 9.93/10.16  ;     3.002  31%   Resolution                   (2,934 calls)
% 9.93/10.16  ;     0.068   1%   Paramodulation               (1,467 calls)
% 9.93/10.16  ;     0.000   0%   Factoring                    (6 calls)
% 9.93/10.16  ;     0.180   2%   Condensing                   (16,318 calls)
% 9.93/10.16  ;     1.056  11%   Forward subsumption          (16,318 calls)
% 9.93/10.16  ;     0.173   2%   Backward subsumption         (3,623 calls)
% 9.93/10.16  ;     0.515   5%   Clause clause subsumption    (80,021 calls)
% 9.93/10.16  ;     1.866  19%   Forward simplification       (48,464 calls)
% 9.93/10.16  ;     0.127   1%   Backward simplification      (10,803 calls)
% 9.93/10.16  ;     0.451   5%   Ordering                     (81,206 calls)
% 9.93/10.16  ;     0.001   0%   Sortal reasoning             (32 calls)
% 9.93/10.16  ;     0.003   0%   Purity testing               (1 call)
% 9.93/10.16  ;     0.242   3%   Other
% 9.93/10.16  ;     9.624        Total
% 9.93/10.16  ;     9.695        Real time
% 9.93/10.16  ; 
% 9.93/10.16  ; Term-hash-array has 26,917 terms in all.
% 9.93/10.16  ; Feature-vector-row-index has 3,475 entries (3,475 at peak, 3,623 added, 148 deleted).
% 9.93/10.16  ; Feature-vector-row-index has 12,691 nodes (12,691 at peak, 13,447 added, 756 deleted).
% 9.93/10.16  ;  Retrieved 215,113 possibly forward subsuming rows in 16,318 calls.
% 9.93/10.16  ;  Retrieved 5,951 possibly backward subsumed rows in 3,623 calls.
% 9.93/10.16  ; Path-index has 25,748 entries (25,748 at peak, 27,102 added, 1,354 deleted).
% 9.93/10.16  ; Path-index has 22,982 nodes (22,982 at peak, 23,991 added, 1,009 deleted).
% 9.93/10.16  ; Trie-index has 25,748 entries (25,748 at peak, 27,102 added, 1,354 deleted).
% 9.93/10.16  ; Trie-index has 226,017 nodes (226,017 at peak, 234,438 added, 8,421 deleted).
% 9.93/10.16  ; Retrieved 265,239 generalization terms in 441,375 calls.
% 9.93/10.16  ; Retrieved 9,729 instance terms in 7,774 calls.
% 9.93/10.16  ; Retrieved 6,498,739 unifiable terms in 70,759 calls.
% 9.93/10.16  ; 
% 9.93/10.16  ; The agenda of rows to process has 885 entries:
% 9.93/10.16  ;     3 with value 34             90 with value 44              72 with value 53
% 9.93/10.16  ;     6 with value 35             72 with value 46             108 with value 55
% 9.93/10.16  ;    18 with value 38             90 with value 48              72 with value 57
% 9.93/10.16  ;    72 with value 40             24 with value 49              18 with value 63
% 9.93/10.16  ;    96 with value 42             72 with value 50              18 with value 69
% 9.93/10.16  ;    18 with value 43             18 with value 51              18 with value 76
% 9.93/10.16  ; The agenda of rows to give has 8745 entries:
% 9.93/10.16  ;    15 with value (4 11)        146 with value (4 35)           8 with value (4 59)
% 9.93/10.16  ;   244 with value (4 12)        134 with value (4 36)         186 with value (4 60)
% 9.93/10.16  ;    87 with value (4 13)        212 with value (4 37)         199 with value (4 62)
% 9.93/10.16  ;   168 with value (4 14)        159 with value (4 38)          10 with value (4 63)
% 9.93/10.16  ;   238 with value (4 15)        114 with value (4 39)         173 with value (4 64)
% 9.93/10.16  ;   234 with value (4 16)        157 with value (4 40)          11 with value (4 65)
% 9.93/10.16  ;   264 with value (4 17)         70 with value (4 41)          54 with value (4 66)
% 9.93/10.16  ;   314 with value (4 18)        138 with value (4 42)           9 with value (4 67)
% 9.93/10.16  ;   266 with value (4 19)         69 with value (4 43)           6 with value (4 68)
% 9.93/10.16  ;   228 with value (4 20)        165 with value (4 44)           6 with value (4 69)
% 9.93/10.16  ;   329 with value (4 21)         79 with value (4 45)           2 with value (4 70)
% 9.93/10.16  ;   226 with value (4 22)        108 with value (4 46)          24 with value (4 71)
% 9.93/10.16  ;   198 with value (4 23)        117 with value (4 47)          30 with value (4 73)
% 9.93/10.16  ;   154 with value (4 24)        171 with value (4 48)          18 with value (4 75)
% 9.93/10.16  ;   258 with value (4 25)         76 with value (4 49)          18 with value (4 76)
% 9.93/10.16  ;   249 with value (4 26)        155 with value (4 50)           6 with value (4 78)
% 9.93/10.16  ;   222 with value (4 27)         70 with value (4 51)          24 with value (4 80)
% 9.93/10.16  ;   271 with value (4 28)        131 with value (4 52)           2 with value (4 81)
% 9.93/10.16  ;   131 with value (4 29)         96 with value (4 53)          30 with value (4 82)
% 9.93/10.16  ;   215 with value (4 30)         87 with value (4 54)          12 with value (4 83)
% 9.93/10.16  ;   192 with value (4 31)        126 with value (4 55)          12 with value (4 84)
% 9.93/10.16  ;   217 with value (4 32)         66 with value (4 56)          18 with value (4 85)
% 9.93/10.16  ;   164 with value (4 33)         66 with value (4 57)           6 with value (4 92)
% 9.93/10.16  ;   160 with value (4 34)        119 with value (4 58)           6 with value (4 101)
% 9.93/10.16  Evaluation took:
% 9.93/10.16    9.698 seconds of real time
% 9.93/10.16    9.096989 seconds of user run time
% 9.93/10.16    0.597608 seconds of system run time
% 9.93/10.16    [Run times include 1.367 seconds GC run time.]
% 9.93/10.16    0 calls to %EVAL
% 9.93/10.16    0 page faults and
% 9.93/10.16    719,066,840 bytes consed.
% 9.93/10.16  :PROOF-FOUND
% 9.93/10.16  ; End refute-file /export/starexec/sandbox/benchmark/theBenchmark.p 2022-06-09T04:33:30
% 9.93/10.16  :PROOF-FOUND
% 9.93/10.16  * 
%------------------------------------------------------------------------------