0.00/0.00	% File    : /export/starexec/sandbox/benchmark/theBenchmark.p
0.00/0.00	% app-encoded or not : original
0.00/0.00	% Variant    : purification_ext
0.00/0.00	% Ordering    : kbo
0.00/0.00	% Command    : 
0.00/0.00	#!/bin/sh
0.00/0.00	
0.00/0.00	./zipperposition.native ${1:+"$1"} \
0.00/0.00	  -i tptp \
0.00/0.00	  -o tptp \
0.00/0.00	  --timeout "$STAREXEC_WALLCLOCK_LIMIT" \
0.00/0.00	  --mem-limit "$STAREXEC_MAX_MEM" \
0.00/0.00	  --no-avatar \
0.00/0.00	  --ho \
0.00/0.00	  --force-ho \
0.00/0.00	  --no-ho-elim-pred-var \
0.00/0.00	  --ho-general-ext-pos \
0.00/0.00	  --no-ho-unif \
0.00/0.00	  --no-induction \
0.00/0.00	  --no-unif-pattern \
0.00/0.00	  --ord $2  \
0.00/0.00	  --simultaneous-sup false \
0.00/0.00	  --ho-purify ext \
0.00/0.00	  --ho-ext-axiom \
0.00/0.00	  --restrict-hidden-sup-at-vars \
0.00/0.00	  --ho-prim-enum none \
0.00/0.00	  --no-max-vars \
0.00/0.00	  --dont-select-ho-var-lits \
0.00/0.00	  --no-fool
0.00/0.19	% Computer   : n071.star.cs.uiowa.edu
0.00/0.19	% Model      : x86_64 x86_64
0.00/0.19	% CPU        : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz
0.00/0.19	% Memory     : 32218.625MB
0.00/0.19	% OS         : Linux 3.10.0-693.2.2.el7.x86_64
0.00/0.19	% CPULimit   : 300
0.00/0.19	% DateTime   : Fri Feb  2 17:14:39 CST 2018
0.00/0.24	% done 50 iterations in 0.038s
0.00/0.24	% SZS status Theorem for '/export/starexec/sandbox/benchmark/theBenchmark.p'
0.00/0.24	% SZS output start Refutation
0.00/0.24	tff(setukpairinjR11, conjecture,
0.00/0.24	  (setext =>
0.00/0.24	   (setadjoinIL =>
0.00/0.24	    (uniqinunit =>
0.00/0.24	     (eqinunit =>
0.00/0.24	      (upairset2E =>
0.00/0.24	       (![Xx,Xy]:
0.00/0.24	          ((Xx = Xy) =>
0.00/0.24	           (setadjoin(Xx,setadjoin(Xy,emptyset)) = setadjoin(Xx,emptyset)))))))))).
0.00/0.24	tff(zf_stmt_0, negated_conjecture,
0.00/0.24	  (~
0.00/0.24	    (setext =>
0.00/0.24	     (setadjoinIL =>
0.00/0.24	      (uniqinunit =>
0.00/0.24	       (eqinunit =>
0.00/0.24	        (upairset2E =>
0.00/0.24	         (![Xx,Xy]:
0.00/0.24	            ((Xx = Xy) =>
0.00/0.24	             (setadjoin(Xx,setadjoin(Xy,emptyset)) = setadjoin(Xx,emptyset))))))))))).
0.00/0.24	tff('0', plain,
0.00/0.24	    setadjoin(sk_Xx6, setadjoin(sk_Xy4, emptyset))
0.00/0.24	     != setadjoin(sk_Xx6, emptyset),
0.00/0.24	    inference('cnf', [status(esa)], [zf_stmt_0])).
0.00/0.24	tff('1', plain, sk_Xx6 = sk_Xy4, inference('cnf', [status(esa)], [zf_stmt_0])).
0.00/0.24	tff('2', plain,
0.00/0.24	    setadjoin(sk_Xx6, setadjoin(sk_Xx6, emptyset))
0.00/0.24	     != setadjoin(sk_Xx6, emptyset),
0.00/0.24	    inference('demod', [status(thm)], ['0', '1'])).
0.00/0.24	tff(setadjoinIL, axiom,
0.00/0.24	  (setadjoinIL <=> (![Xx,Xy]: in(Xx,setadjoin(Xx,Xy))))).
0.00/0.24	tff('3', plain, ![X4, X5]: (in(X4, setadjoin(X4, X5)) | ~ setadjoinIL),
0.00/0.24	    inference('cnf', [status(esa)], [setadjoinIL])).
0.00/0.24	tff('4', plain, setadjoinIL, inference('cnf', [status(esa)], [zf_stmt_0])).
0.00/0.24	tff('5', plain, ![X4, X5]: (in(X4, setadjoin(X4, X5)) | ~ $true),
0.00/0.24	    inference('demod', [status(thm)], ['3', '4'])).
0.00/0.24	tff('6', plain, ![X4, X5]: in(X4, setadjoin(X4, X5)),
0.00/0.24	    inference('simplify', [status(thm)], ['5'])).
0.00/0.24	tff(setext, axiom,
0.00/0.24	  (setext <=>
0.00/0.24	   (![A,B]:
0.00/0.24	      ((![Xx]: (in(Xx,A) => in(Xx,B))) =>
0.00/0.24	       ((![Xx]: (in(Xx,B) => in(Xx,A))) => (A = B)))))).
0.00/0.24	tff('7', plain,
0.00/0.24	    ![X0, X1]:
0.00/0.24	      (in(sk_Xx1(X0, X1), X1) | X1 = X0 | in(sk_Xx(X0, X1), X0) | ~ setext),
0.00/0.24	    inference('cnf', [status(esa)], [setext])).
0.00/0.24	tff('8', plain, setext, inference('cnf', [status(esa)], [zf_stmt_0])).
0.00/0.24	tff('9', plain,
0.00/0.24	    ![X0, X1]:
0.00/0.24	      (in(sk_Xx1(X0, X1), X1) | X1 = X0 | in(sk_Xx(X0, X1), X0) | ~ $true),
0.00/0.24	    inference('demod', [status(thm)], ['7', '8'])).
0.00/0.24	tff('10', plain,
0.00/0.24	    ![X0, X1]: (in(sk_Xx(X0, X1), X0) | X1 = X0 | in(sk_Xx1(X0, X1), X1)),
0.00/0.24	    inference('simplify', [status(thm)], ['9'])).
0.00/0.24	tff(uniqinunit, axiom,
0.00/0.24	  (uniqinunit <=> (![Xx,Xy]: (in(Xx,setadjoin(Xy,emptyset)) => (Xx = Xy))))).
0.00/0.24	tff('11', plain,
0.00/0.24	    ![X6, X7]: (~ in(X6, setadjoin(X7, emptyset)) | X6 = X7 | ~ uniqinunit),
0.00/0.24	    inference('cnf', [status(esa)], [uniqinunit])).
0.00/0.24	tff('12', plain, uniqinunit, inference('cnf', [status(esa)], [zf_stmt_0])).
0.00/0.24	tff('13', plain,
0.00/0.24	    ![X6, X7]: (~ in(X6, setadjoin(X7, emptyset)) | X6 = X7 | ~ $true),
0.00/0.24	    inference('demod', [status(thm)], ['11', '12'])).
0.00/0.24	tff('14', plain, ![X6, X7]: (X6 = X7 | ~ in(X6, setadjoin(X7, emptyset))),
0.00/0.24	    inference('simplify', [status(thm)], ['13'])).
0.00/0.24	tff('15', plain,
0.00/0.24	    ![X0, X1]:
0.00/0.24	      (~ $true
0.00/0.24	       | in(sk_Xx1(setadjoin(X0, emptyset), X1), X1)
0.00/0.24	       | X1 = setadjoin(X0, emptyset)
0.00/0.24	       | sk_Xx(setadjoin(X0, emptyset), X1) = X0),
0.00/0.24	    inference('sup-', [status(thm)], ['10', '14'])).
0.00/0.24	tff('16', plain,
0.00/0.24	    ![X0, X1]:
0.00/0.24	      (sk_Xx(setadjoin(X0, emptyset), X1) = X0
0.00/0.24	       | X1 = setadjoin(X0, emptyset)
0.00/0.24	       | in(sk_Xx1(setadjoin(X0, emptyset), X1), X1)),
0.00/0.24	    inference('simplify', [status(thm)], ['15'])).
0.00/0.24	tff(upairset2E, axiom,
0.00/0.24	  (upairset2E <=>
0.00/0.24	   (![Xx,Xy,Xz]:
0.00/0.24	      (in(Xz,setadjoin(Xx,setadjoin(Xy,emptyset))) => ((Xz = Xy) | (Xz = Xx)))))).
0.00/0.24	tff('17', plain,
0.00/0.24	    ![X10, X11, X12]:
0.00/0.24	      (~ in(X10, setadjoin(X11, setadjoin(X12, emptyset)))
0.00/0.24	       | X10 = X12
0.00/0.24	       | X10 = X11
0.00/0.24	       | ~ upairset2E),
0.00/0.24	    inference('cnf', [status(esa)], [upairset2E])).
0.00/0.24	tff('18', plain, upairset2E, inference('cnf', [status(esa)], [zf_stmt_0])).
0.00/0.24	tff('19', plain,
0.00/0.24	    ![X10, X11, X12]:
0.00/0.24	      (~ in(X10, setadjoin(X11, setadjoin(X12, emptyset)))
0.00/0.24	       | X10 = X12
0.00/0.24	       | X10 = X11
0.00/0.24	       | ~ $true),
0.00/0.24	    inference('demod', [status(thm)], ['17', '18'])).
0.00/0.24	tff('20', plain,
0.00/0.24	    ![X10, X11, X12]:
0.00/0.24	      (X10 = X11
0.00/0.24	       | X10 = X12
0.00/0.24	       | ~ in(X10, setadjoin(X11, setadjoin(X12, emptyset)))),
0.00/0.24	    inference('simplify', [status(thm)], ['19'])).
0.00/0.24	tff('21', plain,
0.00/0.24	    ![X0, X1, X2]:
0.00/0.24	      (~ $true
0.00/0.24	       | setadjoin(X1, setadjoin(X0, emptyset)) = setadjoin(X2, emptyset)
0.00/0.24	       | sk_Xx(setadjoin(X2, emptyset), 
0.00/0.24	           setadjoin(X1, setadjoin(X0, emptyset)))
0.00/0.24	          = X2
0.00/0.24	       | sk_Xx1(setadjoin(X2, emptyset), 
0.00/0.24	           setadjoin(X1, setadjoin(X0, emptyset)))
0.00/0.24	          = X0
0.00/0.24	       | sk_Xx1(setadjoin(X2, emptyset), 
0.00/0.24	           setadjoin(X1, setadjoin(X0, emptyset)))
0.00/0.24	          = X1),
0.00/0.24	    inference('sup-', [status(thm)], ['16', '20'])).
0.00/0.24	tff('22', plain,
0.00/0.24	    ![X0, X1, X2]:
0.00/0.24	      (sk_Xx1(setadjoin(X2, emptyset), 
0.00/0.24	         setadjoin(X1, setadjoin(X0, emptyset)))
0.00/0.24	        = X1
0.00/0.24	       | sk_Xx1(setadjoin(X2, emptyset), 
0.00/0.24	           setadjoin(X1, setadjoin(X0, emptyset)))
0.00/0.24	          = X0
0.00/0.24	       | sk_Xx(setadjoin(X2, emptyset), 
0.00/0.24	           setadjoin(X1, setadjoin(X0, emptyset)))
0.00/0.24	          = X2
0.00/0.24	       | setadjoin(X1, setadjoin(X0, emptyset)) = setadjoin(X2, emptyset)),
0.00/0.24	    inference('simplify', [status(thm)], ['21'])).
0.00/0.24	tff('23', plain,
0.00/0.24	    ![X0, X1, X2]:
0.00/0.24	      (X0 != X1
0.00/0.24	       | setadjoin(X0, setadjoin(X1, emptyset)) = setadjoin(X2, emptyset)
0.00/0.24	       | sk_Xx(setadjoin(X2, emptyset), 
0.00/0.24	           setadjoin(X0, setadjoin(X1, emptyset)))
0.00/0.24	          = X2
0.00/0.24	       | sk_Xx1(setadjoin(X2, emptyset), 
0.00/0.24	           setadjoin(X0, setadjoin(X1, emptyset)))
0.00/0.24	          = X1),
0.00/0.24	    inference('eq_fact', [status(thm)], ['22'])).
0.00/0.24	tff('24', plain,
0.00/0.24	    ![X1, X2]:
0.00/0.24	      (sk_Xx1(setadjoin(X2, emptyset), 
0.00/0.24	         setadjoin(X1, setadjoin(X1, emptyset)))
0.00/0.24	        = X1
0.00/0.24	       | sk_Xx(setadjoin(X2, emptyset), 
0.00/0.24	           setadjoin(X1, setadjoin(X1, emptyset)))
0.00/0.24	          = X2
0.00/0.24	       | setadjoin(X1, setadjoin(X1, emptyset)) = setadjoin(X2, emptyset)),
0.00/0.24	    inference('simplify', [status(thm)], ['23'])).
0.00/0.24	tff('25', plain,
0.00/0.24	    ![X0, X1]:
0.00/0.24	      (~ in(sk_Xx1(X0, X1), X0) | X1 = X0 | in(sk_Xx(X0, X1), X0) | ~ setext),
0.00/0.24	    inference('cnf', [status(esa)], [setext])).
0.00/0.24	tff('26', plain,
0.00/0.24	    ![X0, X1]:
0.00/0.24	      (~ in(sk_Xx1(X0, X1), X0) | X1 = X0 | in(sk_Xx(X0, X1), X0) | ~ $true),
0.00/0.24	    inference('demod', [status(thm)], ['25', '8'])).
0.00/0.24	tff('27', plain,
0.00/0.24	    ![X0, X1]: (in(sk_Xx(X0, X1), X0) | X1 = X0 | ~ in(sk_Xx1(X0, X1), X0)),
0.00/0.24	    inference('simplify', [status(thm)], ['26'])).
0.00/0.24	tff('28', plain,
0.00/0.24	    ![X0, X1]:
0.00/0.24	      (~ in(X0, setadjoin(X1, emptyset))
0.00/0.24	       | setadjoin(X0, setadjoin(X0, emptyset)) = setadjoin(X1, emptyset)
0.00/0.24	       | sk_Xx(setadjoin(X1, emptyset), 
0.00/0.24	           setadjoin(X0, setadjoin(X0, emptyset)))
0.00/0.24	          = X1
0.00/0.24	       | setadjoin(X0, setadjoin(X0, emptyset)) = setadjoin(X1, emptyset)
0.00/0.24	       | in(
0.00/0.24	           sk_Xx(setadjoin(X1, emptyset), 
0.00/0.24	             setadjoin(X0, setadjoin(X0, emptyset))), 
0.00/0.24	           setadjoin(X1, emptyset))),
0.00/0.24	    inference('sup-', [status(thm)], ['24', '27'])).
0.00/0.24	tff('29', plain,
0.00/0.24	    ![X0, X1]:
0.00/0.24	      (in(
0.00/0.24	         sk_Xx(setadjoin(X1, emptyset), 
0.00/0.24	           setadjoin(X0, setadjoin(X0, emptyset))), setadjoin(X1, emptyset))
0.00/0.24	       | sk_Xx(setadjoin(X1, emptyset), 
0.00/0.24	           setadjoin(X0, setadjoin(X0, emptyset)))
0.00/0.24	          = X1
0.00/0.24	       | setadjoin(X0, setadjoin(X0, emptyset)) = setadjoin(X1, emptyset)
0.00/0.24	       | ~ in(X0, setadjoin(X1, emptyset))),
0.00/0.24	    inference('simplify', [status(thm)], ['28'])).
0.00/0.24	tff('30', plain,
0.00/0.24	    ![X0, X1]:
0.00/0.24	      (~ in(X0, setadjoin(X1, emptyset))
0.00/0.24	       | setadjoin(X0, setadjoin(X0, emptyset)) = setadjoin(X1, emptyset)
0.00/0.24	       | sk_Xx(setadjoin(X1, emptyset), 
0.00/0.24	           setadjoin(X0, setadjoin(X0, emptyset)))
0.00/0.24	          = X1),
0.00/0.24	    inference('clc', [status(thm)], ['29', '14'])).
0.00/0.24	tff('31', plain,
0.00/0.24	    ![X0, X1]:
0.00/0.24	      (in(sk_Xx1(X0, X1), X1) | X1 = X0 | ~ in(sk_Xx(X0, X1), X1) | ~ setext),
0.00/0.24	    inference('cnf', [status(esa)], [setext])).
0.00/0.24	tff('32', plain,
0.00/0.24	    ![X0, X1]:
0.00/0.24	      (in(sk_Xx1(X0, X1), X1) | X1 = X0 | ~ in(sk_Xx(X0, X1), X1) | ~ $true),
0.00/0.24	    inference('demod', [status(thm)], ['31', '8'])).
0.00/0.24	tff('33', plain,
0.00/0.24	    ![X0, X1]: (~ in(sk_Xx(X0, X1), X1) | X1 = X0 | in(sk_Xx1(X0, X1), X1)),
0.00/0.24	    inference('simplify', [status(thm)], ['32'])).
0.00/0.24	tff('34', plain,
0.00/0.24	    ![X0, X1, X2]:
0.00/0.24	      (~ $true
0.00/0.24	       | setadjoin(X1, setadjoin(X0, emptyset)) = X2
0.00/0.24	       | ~ in(sk_Xx(X2, setadjoin(X1, setadjoin(X0, emptyset))), 
0.00/0.24	             setadjoin(X1, setadjoin(X0, emptyset)))
0.00/0.24	       | sk_Xx1(X2, setadjoin(X1, setadjoin(X0, emptyset))) = X0
0.00/0.24	       | sk_Xx1(X2, setadjoin(X1, setadjoin(X0, emptyset))) = X1),
0.00/0.24	    inference('sup-', [status(thm)], ['33', '20'])).
0.00/0.24	tff('35', plain,
0.00/0.24	    ![X0, X1, X2]:
0.00/0.24	      (sk_Xx1(X2, setadjoin(X1, setadjoin(X0, emptyset))) = X1
0.00/0.24	       | sk_Xx1(X2, setadjoin(X1, setadjoin(X0, emptyset))) = X0
0.00/0.24	       | ~ in(sk_Xx(X2, setadjoin(X1, setadjoin(X0, emptyset))), 
0.00/0.24	             setadjoin(X1, setadjoin(X0, emptyset)))
0.00/0.24	       | setadjoin(X1, setadjoin(X0, emptyset)) = X2),
0.00/0.24	    inference('simplify', [status(thm)], ['34'])).
0.00/0.24	tff('36', plain,
0.00/0.24	    ![X0, X1]:
0.00/0.24	      (~ in(X0, setadjoin(X1, setadjoin(X1, emptyset)))
0.00/0.24	       | setadjoin(X1, setadjoin(X1, emptyset)) = setadjoin(X0, emptyset)
0.00/0.24	       | ~ in(X1, setadjoin(X0, emptyset))
0.00/0.24	       | setadjoin(X1, setadjoin(X1, emptyset)) = setadjoin(X0, emptyset)
0.00/0.24	       | sk_Xx1(setadjoin(X0, emptyset), 
0.00/0.24	           setadjoin(X1, setadjoin(X1, emptyset)))
0.00/0.24	          = X1
0.00/0.24	       | sk_Xx1(setadjoin(X0, emptyset), 
0.00/0.24	           setadjoin(X1, setadjoin(X1, emptyset)))
0.00/0.24	          = X1),
0.00/0.24	    inference('sup-', [status(thm)], ['30', '35'])).
0.00/0.24	tff('37', plain,
0.00/0.24	    ![X0, X1]:
0.00/0.24	      (sk_Xx1(setadjoin(X0, emptyset), 
0.00/0.24	         setadjoin(X1, setadjoin(X1, emptyset)))
0.00/0.24	        = X1
0.00/0.24	       | ~ in(X1, setadjoin(X0, emptyset))
0.00/0.24	       | setadjoin(X1, setadjoin(X1, emptyset)) = setadjoin(X0, emptyset)
0.00/0.24	       | ~ in(X0, setadjoin(X1, setadjoin(X1, emptyset)))),
0.00/0.24	    inference('simplify', [status(thm)], ['36'])).
0.00/0.24	tff('38', plain,
0.00/0.24	    ![X0, X1]:
0.00/0.24	      (~ in(sk_Xx1(X0, X1), X0)
0.00/0.24	       | X1 = X0
0.00/0.24	       | ~ in(sk_Xx(X0, X1), X1)
0.00/0.24	       | ~ setext),
0.00/0.24	    inference('cnf', [status(esa)], [setext])).
0.00/0.24	tff('39', plain,
0.00/0.24	    ![X0, X1]:
0.00/0.24	      (~ in(sk_Xx1(X0, X1), X0) | X1 = X0 | ~ in(sk_Xx(X0, X1), X1) | ~ $true),
0.00/0.24	    inference('demod', [status(thm)], ['38', '8'])).
0.00/0.24	tff('40', plain,
0.00/0.24	    ![X0, X1]: (~ in(sk_Xx(X0, X1), X1) | X1 = X0 | ~ in(sk_Xx1(X0, X1), X0)),
0.00/0.24	    inference('simplify', [status(thm)], ['39'])).
0.00/0.24	tff('41', plain,
0.00/0.24	    ![X0, X1]:
0.00/0.24	      (~ in(X0, setadjoin(X1, setadjoin(X1, emptyset)))
0.00/0.24	       | setadjoin(X1, setadjoin(X1, emptyset)) = setadjoin(X0, emptyset)
0.00/0.24	       | ~ in(X1, setadjoin(X0, emptyset))
0.00/0.24	       | ~ in(
0.00/0.24	             sk_Xx1(setadjoin(X0, emptyset), 
0.00/0.24	               setadjoin(X1, setadjoin(X1, emptyset))), 
0.00/0.24	             setadjoin(X0, emptyset))
0.00/0.24	       | setadjoin(X1, setadjoin(X1, emptyset)) = setadjoin(X0, emptyset)),
0.00/0.24	    inference('sup-', [status(thm)], ['30', '40'])).
0.00/0.24	tff('42', plain,
0.00/0.24	    ![X0, X1]:
0.00/0.24	      (~ in(
0.00/0.24	           sk_Xx1(setadjoin(X0, emptyset), 
0.00/0.24	             setadjoin(X1, setadjoin(X1, emptyset))), 
0.00/0.24	           setadjoin(X0, emptyset))
0.00/0.24	       | ~ in(X1, setadjoin(X0, emptyset))
0.00/0.24	       | setadjoin(X1, setadjoin(X1, emptyset)) = setadjoin(X0, emptyset)
0.00/0.24	       | ~ in(X0, setadjoin(X1, setadjoin(X1, emptyset)))),
0.00/0.24	    inference('simplify', [status(thm)], ['41'])).
0.00/0.24	tff('43', plain,
0.00/0.24	    ![X0, X1]:
0.00/0.24	      (~ in(X0, setadjoin(X1, emptyset))
0.00/0.24	       | ~ in(X1, setadjoin(X0, setadjoin(X0, emptyset)))
0.00/0.24	       | setadjoin(X0, setadjoin(X0, emptyset)) = setadjoin(X1, emptyset)
0.00/0.24	       | ~ in(X0, setadjoin(X1, emptyset))
0.00/0.24	       | ~ in(X1, setadjoin(X0, setadjoin(X0, emptyset)))
0.00/0.24	       | setadjoin(X0, setadjoin(X0, emptyset)) = setadjoin(X1, emptyset)
0.00/0.24	       | ~ in(X0, setadjoin(X1, emptyset))),
0.00/0.24	    inference('sup-', [status(thm)], ['37', '42'])).
0.00/0.24	tff('44', plain,
0.00/0.24	    ![X0, X1]:
0.00/0.24	      (setadjoin(X0, setadjoin(X0, emptyset)) = setadjoin(X1, emptyset)
0.00/0.24	       | ~ in(X1, setadjoin(X0, setadjoin(X0, emptyset)))
0.00/0.24	       | ~ in(X0, setadjoin(X1, emptyset))),
0.00/0.24	    inference('simplify', [status(thm)], ['43'])).
0.00/0.24	tff('45', plain,
0.00/0.24	    ![X0]:
0.00/0.24	      (~ $true
0.00/0.24	       | ~ in(X0, setadjoin(X0, emptyset))
0.00/0.24	       | setadjoin(X0, setadjoin(X0, emptyset)) = setadjoin(X0, emptyset)),
0.00/0.24	    inference('sup-', [status(thm)], ['6', '44'])).
0.00/0.24	tff('46', plain,
0.00/0.24	    ![X0]:
0.00/0.24	      (~ $true
0.00/0.24	       | ~ $true
0.00/0.24	       | setadjoin(X0, setadjoin(X0, emptyset)) = setadjoin(X0, emptyset)),
0.00/0.24	    inference('demod', [status(thm)], ['45', '6'])).
0.00/0.24	tff('47', plain,
0.00/0.24	    ![X0]: setadjoin(X0, setadjoin(X0, emptyset)) = setadjoin(X0, emptyset),
0.00/0.24	    inference('simplify', [status(thm)], ['46'])).
0.00/0.24	tff('48', plain, setadjoin(sk_Xx6, emptyset) != setadjoin(sk_Xx6, emptyset),
0.00/0.24	    inference('demod', [status(thm)], ['2', '47'])).
0.00/0.24	tff('49', plain, $false, inference('simplify', [status(thm)], ['48'])).
0.00/0.24	
0.00/0.24	% SZS output end Refutation
0.00/0.24	EOF
