Theorem xposdif 9974

Description: Extended real version of posdif 8499. (Contributed by Mario Carneiro, 24-Aug-2015.) (Revised by Jim Kingdon, 17-Apr-2023.)

Assertion

Ref	Expression
xposdif	|- ( ( A e. RR* /\ B e. RR* ) -> ( A < B <-> 0 < ( B +e -e A ) ) )

Proof of Theorem xposdif

Step	Hyp	Ref	Expression
1		elxr 9868	. . 3 |- ( B e. RR* <-> ( B e. RR \/ B = +oo \/ B = -oo ) )
2		elxr 9868	. . . . 5 |- ( A e. RR* <-> ( A e. RR \/ A = +oo \/ A = -oo ) )
3		posdif 8499	. . . . . . . 8 |- ( ( A e. RR /\ B e. RR ) -> ( A < B <-> 0 < ( B - A ) ) )
4		rexsub 9945	. . . . . . . . . 10 |- ( ( B e. RR /\ A e. RR ) -> ( B +e -e A ) = ( B - A ) )
5	4	ancoms 268	. . . . . . . . 9 |- ( ( A e. RR /\ B e. RR ) -> ( B +e -e A ) = ( B - A ) )
6	5	breq2d 4046	. . . . . . . 8 |- ( ( A e. RR /\ B e. RR ) -> ( 0 < ( B +e -e A ) <-> 0 < ( B - A ) ) )
7	3, 6	bitr4d 191	. . . . . . 7 |- ( ( A e. RR /\ B e. RR ) -> ( A < B <-> 0 < ( B +e -e A ) ) )
8	7	ex 115	. . . . . 6 |- ( A e. RR -> ( B e. RR -> ( A < B <-> 0 < ( B +e -e A ) ) ) )
9		rexr 8089	. . . . . . . . . 10 |- ( B e. RR -> B e. RR* )
10		pnfnlt 9879	. . . . . . . . . . 11 |- ( B e. RR* -> -. +oo < B )
11	10	adantl 277	. . . . . . . . . 10 |- ( ( A = +oo /\ B e. RR* ) -> -. +oo < B )
12	9, 11	sylan2 286	. . . . . . . . 9 |- ( ( A = +oo /\ B e. RR ) -> -. +oo < B )
13		simpl 109	. . . . . . . . . 10 |- ( ( A = +oo /\ B e. RR ) -> A = +oo )
14	13	breq1d 4044	. . . . . . . . 9 |- ( ( A = +oo /\ B e. RR ) -> ( A < B <-> +oo < B ) )
15	12, 14	mtbird 674	. . . . . . . 8 |- ( ( A = +oo /\ B e. RR ) -> -. A < B )
16		0xr 8090	. . . . . . . . . 10 |- 0 e. RR*
17		nltmnf 9880	. . . . . . . . . 10 |- ( 0 e. RR* -> -. 0 < -oo )
18	16, 17	ax-mp 5	. . . . . . . . 9 |- -. 0 < -oo
19		xnegeq 9919	. . . . . . . . . . . . . 14 |- ( A = +oo -> -e A = -e +oo )
20	19	adantr 276	. . . . . . . . . . . . 13 |- ( ( A = +oo /\ B e. RR ) -> -e A = -e +oo )
21		xnegpnf 9920	. . . . . . . . . . . . 13 |- -e +oo = -oo
22	20, 21	eqtrdi 2245	. . . . . . . . . . . 12 |- ( ( A = +oo /\ B e. RR ) -> -e A = -oo )
23	22	oveq2d 5941	. . . . . . . . . . 11 |- ( ( A = +oo /\ B e. RR ) -> ( B +e -e A ) = ( B +e -oo ) )
24		renepnf 8091	. . . . . . . . . . . . 13 |- ( B e. RR -> B =/= +oo )
25	24	adantl 277	. . . . . . . . . . . 12 |- ( ( A = +oo /\ B e. RR ) -> B =/= +oo )
26		xaddmnf1 9940	. . . . . . . . . . . 12 |- ( ( B e. RR* /\ B =/= +oo ) -> ( B +e -oo ) = -oo )
27	9, 25, 26	syl2an2 594	. . . . . . . . . . 11 |- ( ( A = +oo /\ B e. RR ) -> ( B +e -oo ) = -oo )
28	23, 27	eqtrd 2229	. . . . . . . . . 10 |- ( ( A = +oo /\ B e. RR ) -> ( B +e -e A ) = -oo )
29	28	breq2d 4046	. . . . . . . . 9 |- ( ( A = +oo /\ B e. RR ) -> ( 0 < ( B +e -e A ) <-> 0 < -oo ) )
30	18, 29	mtbiri 676	. . . . . . . 8 |- ( ( A = +oo /\ B e. RR ) -> -. 0 < ( B +e -e A ) )
31	15, 30	2falsed 703	. . . . . . 7 |- ( ( A = +oo /\ B e. RR ) -> ( A < B <-> 0 < ( B +e -e A ) ) )
32	31	ex 115	. . . . . 6 |- ( A = +oo -> ( B e. RR -> ( A < B <-> 0 < ( B +e -e A ) ) ) )
33		simpl 109	. . . . . . . . 9 |- ( ( A = -oo /\ B e. RR ) -> A = -oo )
34		mnflt 9875	. . . . . . . . . 10 |- ( B e. RR -> -oo < B )
35	34	adantl 277	. . . . . . . . 9 |- ( ( A = -oo /\ B e. RR ) -> -oo < B )
36	33, 35	eqbrtrd 4056	. . . . . . . 8 |- ( ( A = -oo /\ B e. RR ) -> A < B )
37		0ltpnf 9874	. . . . . . . . 9 |- 0 < +oo
38		xnegeq 9919	. . . . . . . . . . . . 13 |- ( A = -oo -> -e A = -e -oo )
39		xnegmnf 9921	. . . . . . . . . . . . 13 |- -e -oo = +oo
40	38, 39	eqtrdi 2245	. . . . . . . . . . . 12 |- ( A = -oo -> -e A = +oo )
41	40	oveq2d 5941	. . . . . . . . . . 11 |- ( A = -oo -> ( B +e -e A ) = ( B +e +oo ) )
42	41	adantr 276	. . . . . . . . . 10 |- ( ( A = -oo /\ B e. RR ) -> ( B +e -e A ) = ( B +e +oo ) )
43		renemnf 8092	. . . . . . . . . . . 12 |- ( B e. RR -> B =/= -oo )
44	43	adantl 277	. . . . . . . . . . 11 |- ( ( A = -oo /\ B e. RR ) -> B =/= -oo )
45		xaddpnf1 9938	. . . . . . . . . . 11 |- ( ( B e. RR* /\ B =/= -oo ) -> ( B +e +oo ) = +oo )
46	9, 44, 45	syl2an2 594	. . . . . . . . . 10 |- ( ( A = -oo /\ B e. RR ) -> ( B +e +oo ) = +oo )
47	42, 46	eqtrd 2229	. . . . . . . . 9 |- ( ( A = -oo /\ B e. RR ) -> ( B +e -e A ) = +oo )
48	37, 47	breqtrrid 4072	. . . . . . . 8 |- ( ( A = -oo /\ B e. RR ) -> 0 < ( B +e -e A ) )
49	36, 48	2thd 175	. . . . . . 7 |- ( ( A = -oo /\ B e. RR ) -> ( A < B <-> 0 < ( B +e -e A ) ) )
50	49	ex 115	. . . . . 6 |- ( A = -oo -> ( B e. RR -> ( A < B <-> 0 < ( B +e -e A ) ) ) )
51	8, 32, 50	3jaoi 1314	. . . . 5 |- ( ( A e. RR \/ A = +oo \/ A = -oo ) -> ( B e. RR -> ( A < B <-> 0 < ( B +e -e A ) ) ) )
52	2, 51	sylbi 121	. . . 4 |- ( A e. RR* -> ( B e. RR -> ( A < B <-> 0 < ( B +e -e A ) ) ) )
53		ltpnf 9872	. . . . . . . . . 10 |- ( A e. RR -> A < +oo )
54	53	adantr 276	. . . . . . . . 9 |- ( ( A e. RR /\ B = +oo ) -> A < +oo )
55		simpr 110	. . . . . . . . 9 |- ( ( A e. RR /\ B = +oo ) -> B = +oo )
56	54, 55	breqtrrd 4062	. . . . . . . 8 |- ( ( A e. RR /\ B = +oo ) -> A < B )
57	55	oveq1d 5940	. . . . . . . . . 10 |- ( ( A e. RR /\ B = +oo ) -> ( B +e -e A ) = ( +oo +e -e A ) )
58		rexneg 9922	. . . . . . . . . . . . . 14 |- ( A e. RR -> -e A = -u A )
59		renegcl 8304	. . . . . . . . . . . . . 14 |- ( A e. RR -> -u A e. RR )
60	58, 59	eqeltrd 2273	. . . . . . . . . . . . 13 |- ( A e. RR -> -e A e. RR )
61	60	rexrd 8093	. . . . . . . . . . . 12 |- ( A e. RR -> -e A e. RR* )
62	61	adantr 276	. . . . . . . . . . 11 |- ( ( A e. RR /\ B = +oo ) -> -e A e. RR* )
63	60	renemnfd 8095	. . . . . . . . . . . 12 |- ( A e. RR -> -e A =/= -oo )
64	63	adantr 276	. . . . . . . . . . 11 |- ( ( A e. RR /\ B = +oo ) -> -e A =/= -oo )
65		xaddpnf2 9939	. . . . . . . . . . 11 |- ( ( -e A e. RR* /\ -e A =/= -oo ) -> ( +oo +e -e A ) = +oo )
66	62, 64, 65	syl2anc 411	. . . . . . . . . 10 |- ( ( A e. RR /\ B = +oo ) -> ( +oo +e -e A ) = +oo )
67	57, 66	eqtrd 2229	. . . . . . . . 9 |- ( ( A e. RR /\ B = +oo ) -> ( B +e -e A ) = +oo )
68	37, 67	breqtrrid 4072	. . . . . . . 8 |- ( ( A e. RR /\ B = +oo ) -> 0 < ( B +e -e A ) )
69	56, 68	2thd 175	. . . . . . 7 |- ( ( A e. RR /\ B = +oo ) -> ( A < B <-> 0 < ( B +e -e A ) ) )
70	69	ex 115	. . . . . 6 |- ( A e. RR -> ( B = +oo -> ( A < B <-> 0 < ( B +e -e A ) ) ) )
71		pnfxr 8096	. . . . . . . . . 10 |- +oo e. RR*
72		xrltnr 9871	. . . . . . . . . 10 |- ( +oo e. RR* -> -. +oo < +oo )
73	71, 72	ax-mp 5	. . . . . . . . 9 |- -. +oo < +oo
74		breq12 4039	. . . . . . . . 9 |- ( ( A = +oo /\ B = +oo ) -> ( A < B <-> +oo < +oo ) )
75	73, 74	mtbiri 676	. . . . . . . 8 |- ( ( A = +oo /\ B = +oo ) -> -. A < B )
76		0re 8043	. . . . . . . . . 10 |- 0 e. RR
77	76	ltnri 8136	. . . . . . . . 9 |- -. 0 < 0
78		simpr 110	. . . . . . . . . . . 12 |- ( ( A = +oo /\ B = +oo ) -> B = +oo )
79	19, 21	eqtrdi 2245	. . . . . . . . . . . . 13 |- ( A = +oo -> -e A = -oo )
80	79	adantr 276	. . . . . . . . . . . 12 |- ( ( A = +oo /\ B = +oo ) -> -e A = -oo )
81	78, 80	oveq12d 5943	. . . . . . . . . . 11 |- ( ( A = +oo /\ B = +oo ) -> ( B +e -e A ) = ( +oo +e -oo ) )
82		pnfaddmnf 9942	. . . . . . . . . . 11 |- ( +oo +e -oo ) = 0
83	81, 82	eqtrdi 2245	. . . . . . . . . 10 |- ( ( A = +oo /\ B = +oo ) -> ( B +e -e A ) = 0 )
84	83	breq2d 4046	. . . . . . . . 9 |- ( ( A = +oo /\ B = +oo ) -> ( 0 < ( B +e -e A ) <-> 0 < 0 ) )
85	77, 84	mtbiri 676	. . . . . . . 8 |- ( ( A = +oo /\ B = +oo ) -> -. 0 < ( B +e -e A ) )
86	75, 85	2falsed 703	. . . . . . 7 |- ( ( A = +oo /\ B = +oo ) -> ( A < B <-> 0 < ( B +e -e A ) ) )
87	86	ex 115	. . . . . 6 |- ( A = +oo -> ( B = +oo -> ( A < B <-> 0 < ( B +e -e A ) ) ) )
88		mnfltpnf 9877	. . . . . . . . 9 |- -oo < +oo
89		breq12 4039	. . . . . . . . 9 |- ( ( A = -oo /\ B = +oo ) -> ( A < B <-> -oo < +oo ) )
90	88, 89	mpbiri 168	. . . . . . . 8 |- ( ( A = -oo /\ B = +oo ) -> A < B )
91		oveq1 5932	. . . . . . . . . . 11 |- ( B = +oo -> ( B +e +oo ) = ( +oo +e +oo ) )
92	41, 91	sylan9eq 2249	. . . . . . . . . 10 |- ( ( A = -oo /\ B = +oo ) -> ( B +e -e A ) = ( +oo +e +oo ) )
93		pnfnemnf 8098	. . . . . . . . . . 11 |- +oo =/= -oo
94		xaddpnf1 9938	. . . . . . . . . . 11 |- ( ( +oo e. RR* /\ +oo =/= -oo ) -> ( +oo +e +oo ) = +oo )
95	71, 93, 94	mp2an 426	. . . . . . . . . 10 |- ( +oo +e +oo ) = +oo
96	92, 95	eqtrdi 2245	. . . . . . . . 9 |- ( ( A = -oo /\ B = +oo ) -> ( B +e -e A ) = +oo )
97	37, 96	breqtrrid 4072	. . . . . . . 8 |- ( ( A = -oo /\ B = +oo ) -> 0 < ( B +e -e A ) )
98	90, 97	2thd 175	. . . . . . 7 |- ( ( A = -oo /\ B = +oo ) -> ( A < B <-> 0 < ( B +e -e A ) ) )
99	98	ex 115	. . . . . 6 |- ( A = -oo -> ( B = +oo -> ( A < B <-> 0 < ( B +e -e A ) ) ) )
100	70, 87, 99	3jaoi 1314	. . . . 5 |- ( ( A e. RR \/ A = +oo \/ A = -oo ) -> ( B = +oo -> ( A < B <-> 0 < ( B +e -e A ) ) ) )
101	2, 100	sylbi 121	. . . 4 |- ( A e. RR* -> ( B = +oo -> ( A < B <-> 0 < ( B +e -e A ) ) ) )
102		rexr 8089	. . . . . . . . . . 11 |- ( A e. RR -> A e. RR* )
103	102	adantr 276	. . . . . . . . . 10 |- ( ( A e. RR /\ B = -oo ) -> A e. RR* )
104		nltmnf 9880	. . . . . . . . . 10 |- ( A e. RR* -> -. A < -oo )
105	103, 104	syl 14	. . . . . . . . 9 |- ( ( A e. RR /\ B = -oo ) -> -. A < -oo )
106		simpr 110	. . . . . . . . . 10 |- ( ( A e. RR /\ B = -oo ) -> B = -oo )
107	106	breq2d 4046	. . . . . . . . 9 |- ( ( A e. RR /\ B = -oo ) -> ( A < B <-> A < -oo ) )
108	105, 107	mtbird 674	. . . . . . . 8 |- ( ( A e. RR /\ B = -oo ) -> -. A < B )
109	106	oveq1d 5940	. . . . . . . . . . 11 |- ( ( A e. RR /\ B = -oo ) -> ( B +e -e A ) = ( -oo +e -e A ) )
110		rexr 8089	. . . . . . . . . . . . . 14 |- ( -e A e. RR -> -e A e. RR* )
111		renepnf 8091	. . . . . . . . . . . . . 14 |- ( -e A e. RR -> -e A =/= +oo )
112		xaddmnf2 9941	. . . . . . . . . . . . . 14 |- ( ( -e A e. RR* /\ -e A =/= +oo ) -> ( -oo +e -e A ) = -oo )
113	110, 111, 112	syl2anc 411	. . . . . . . . . . . . 13 |- ( -e A e. RR -> ( -oo +e -e A ) = -oo )
114	60, 113	syl 14	. . . . . . . . . . . 12 |- ( A e. RR -> ( -oo +e -e A ) = -oo )
115	114	adantr 276	. . . . . . . . . . 11 |- ( ( A e. RR /\ B = -oo ) -> ( -oo +e -e A ) = -oo )
116	109, 115	eqtrd 2229	. . . . . . . . . 10 |- ( ( A e. RR /\ B = -oo ) -> ( B +e -e A ) = -oo )
117	116	breq2d 4046	. . . . . . . . 9 |- ( ( A e. RR /\ B = -oo ) -> ( 0 < ( B +e -e A ) <-> 0 < -oo ) )
118	18, 117	mtbiri 676	. . . . . . . 8 |- ( ( A e. RR /\ B = -oo ) -> -. 0 < ( B +e -e A ) )
119	108, 118	2falsed 703	. . . . . . 7 |- ( ( A e. RR /\ B = -oo ) -> ( A < B <-> 0 < ( B +e -e A ) ) )
120	119	ex 115	. . . . . 6 |- ( A e. RR -> ( B = -oo -> ( A < B <-> 0 < ( B +e -e A ) ) ) )
121		eleq1 2259	. . . . . . . . . . . 12 |- ( A = +oo -> ( A e. RR* <-> +oo e. RR* ) )
122	71, 121	mpbiri 168	. . . . . . . . . . 11 |- ( A = +oo -> A e. RR* )
123	122	adantr 276	. . . . . . . . . 10 |- ( ( A = +oo /\ B = -oo ) -> A e. RR* )
124	123, 104	syl 14	. . . . . . . . 9 |- ( ( A = +oo /\ B = -oo ) -> -. A < -oo )
125		simpr 110	. . . . . . . . . 10 |- ( ( A = +oo /\ B = -oo ) -> B = -oo )
126	125	breq2d 4046	. . . . . . . . 9 |- ( ( A = +oo /\ B = -oo ) -> ( A < B <-> A < -oo ) )
127	124, 126	mtbird 674	. . . . . . . 8 |- ( ( A = +oo /\ B = -oo ) -> -. A < B )
128	79	oveq2d 5941	. . . . . . . . . . . 12 |- ( A = +oo -> ( B +e -e A ) = ( B +e -oo ) )
129	128	adantr 276	. . . . . . . . . . 11 |- ( ( A = +oo /\ B = -oo ) -> ( B +e -e A ) = ( B +e -oo ) )
130		mnfxr 8100	. . . . . . . . . . . . 13 |- -oo e. RR*
131		eleq1 2259	. . . . . . . . . . . . 13 |- ( B = -oo -> ( B e. RR* <-> -oo e. RR* ) )
132	130, 131	mpbiri 168	. . . . . . . . . . . 12 |- ( B = -oo -> B e. RR* )
133		mnfnepnf 8099	. . . . . . . . . . . . . 14 |- -oo =/= +oo
134		neeq1 2380	. . . . . . . . . . . . . 14 |- ( B = -oo -> ( B =/= +oo <-> -oo =/= +oo ) )
135	133, 134	mpbiri 168	. . . . . . . . . . . . 13 |- ( B = -oo -> B =/= +oo )
136	135	adantl 277	. . . . . . . . . . . 12 |- ( ( A = +oo /\ B = -oo ) -> B =/= +oo )
137	132, 136, 26	syl2an2 594	. . . . . . . . . . 11 |- ( ( A = +oo /\ B = -oo ) -> ( B +e -oo ) = -oo )
138	129, 137	eqtrd 2229	. . . . . . . . . 10 |- ( ( A = +oo /\ B = -oo ) -> ( B +e -e A ) = -oo )
139	138	breq2d 4046	. . . . . . . . 9 |- ( ( A = +oo /\ B = -oo ) -> ( 0 < ( B +e -e A ) <-> 0 < -oo ) )
140	18, 139	mtbiri 676	. . . . . . . 8 |- ( ( A = +oo /\ B = -oo ) -> -. 0 < ( B +e -e A ) )
141	127, 140	2falsed 703	. . . . . . 7 |- ( ( A = +oo /\ B = -oo ) -> ( A < B <-> 0 < ( B +e -e A ) ) )
142	141	ex 115	. . . . . 6 |- ( A = +oo -> ( B = -oo -> ( A < B <-> 0 < ( B +e -e A ) ) ) )
143		xrltnr 9871	. . . . . . . . . 10 |- ( -oo e. RR* -> -. -oo < -oo )
144	130, 143	ax-mp 5	. . . . . . . . 9 |- -. -oo < -oo
145		breq12 4039	. . . . . . . . 9 |- ( ( A = -oo /\ B = -oo ) -> ( A < B <-> -oo < -oo ) )
146	144, 145	mtbiri 676	. . . . . . . 8 |- ( ( A = -oo /\ B = -oo ) -> -. A < B )
147		oveq1 5932	. . . . . . . . . . . 12 |- ( B = -oo -> ( B +e +oo ) = ( -oo +e +oo ) )
148	41, 147	sylan9eq 2249	. . . . . . . . . . 11 |- ( ( A = -oo /\ B = -oo ) -> ( B +e -e A ) = ( -oo +e +oo ) )
149		mnfaddpnf 9943	. . . . . . . . . . 11 |- ( -oo +e +oo ) = 0
150	148, 149	eqtrdi 2245	. . . . . . . . . 10 |- ( ( A = -oo /\ B = -oo ) -> ( B +e -e A ) = 0 )
151	150	breq2d 4046	. . . . . . . . 9 |- ( ( A = -oo /\ B = -oo ) -> ( 0 < ( B +e -e A ) <-> 0 < 0 ) )
152	77, 151	mtbiri 676	. . . . . . . 8 |- ( ( A = -oo /\ B = -oo ) -> -. 0 < ( B +e -e A ) )
153	146, 152	2falsed 703	. . . . . . 7 |- ( ( A = -oo /\ B = -oo ) -> ( A < B <-> 0 < ( B +e -e A ) ) )
154	153	ex 115	. . . . . 6 |- ( A = -oo -> ( B = -oo -> ( A < B <-> 0 < ( B +e -e A ) ) ) )
155	120, 142, 154	3jaoi 1314	. . . . 5 |- ( ( A e. RR \/ A = +oo \/ A = -oo ) -> ( B = -oo -> ( A < B <-> 0 < ( B +e -e A ) ) ) )
156	2, 155	sylbi 121	. . . 4 |- ( A e. RR* -> ( B = -oo -> ( A < B <-> 0 < ( B +e -e A ) ) ) )
157	52, 101, 156	3jaod 1315	. . 3 |- ( A e. RR* -> ( ( B e. RR \/ B = +oo \/ B = -oo ) -> ( A < B <-> 0 < ( B +e -e A ) ) ) )
158	1, 157	biimtrid 152	. 2 |- ( A e. RR* -> ( B e. RR* -> ( A < B <-> 0 < ( B +e -e A ) ) ) )
159	158	imp 124	1 |- ( ( A e. RR* /\ B e. RR* ) -> ( A < B <-> 0 < ( B +e -e A ) ) )

Syntax hints:   -. wn 3   -> wi 4   /\ wa 104   <-> wb 105   \/ w3o 979   = wceq 1364   e. wcel 2167   =/= wne 2367   class class class wbr 4034  (class class class)co 5925   RRcr 7895   0cc0 7896   +oocpnf 8075   -oocmnf 8076   RR*cxr 8077   < clt 8078   - cmin 8214   -ucneg 8215   -ecxne 9861   +ecxad 9862

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 615  ax-in2 616  ax-io 710  ax-5 1461  ax-7 1462  ax-gen 1463  ax-ie1 1507  ax-ie2 1508  ax-8 1518  ax-10 1519  ax-11 1520  ax-i12 1521  ax-bndl 1523  ax-4 1524  ax-17 1540  ax-i9 1544  ax-ial 1548  ax-i5r 1549  ax-13 2169  ax-14 2170  ax-ext 2178  ax-sep 4152  ax-pow 4208  ax-pr 4243  ax-un 4469  ax-setind 4574  ax-cnex 7987  ax-resscn 7988  ax-1cn 7989  ax-1re 7990  ax-icn 7991  ax-addcl 7992  ax-addrcl 7993  ax-mulcl 7994  ax-addcom 7996  ax-addass 7998  ax-distr 8000  ax-i2m1 8001  ax-0id 8004  ax-rnegex 8005  ax-cnre 8007  ax-pre-ltirr 8008  ax-pre-ltadd 8012

This theorem depends on definitions:  df-bi 117  df-dc 836  df-3or 981  df-3an 982  df-tru 1367  df-fal 1370  df-nf 1475  df-sb 1777  df-eu 2048  df-mo 2049  df-clab 2183  df-cleq 2189  df-clel 2192  df-nfc 2328  df-ne 2368  df-nel 2463  df-ral 2480  df-rex 2481  df-reu 2482  df-rab 2484  df-v 2765  df-sbc 2990  df-dif 3159  df-un 3161  df-in 3163  df-ss 3170  df-if 3563  df-pw 3608  df-sn 3629  df-pr 3630  df-op 3632  df-uni 3841  df-br 4035  df-opab 4096  df-id 4329  df-xp 4670  df-rel 4671  df-cnv 4672  df-co 4673  df-dm 4674  df-iota 5220  df-fun 5261  df-fv 5267  df-riota 5880  df-ov 5928  df-oprab 5929  df-mpo 5930  df-pnf 8080  df-mnf 8081  df-xr 8082  df-ltxr 8083  df-sub 8216  df-neg 8217  df-xneg 9864  df-xadd 9865

This theorem is referenced by: (None)