Theorem ltresr 9589

Description: Ordering of real subset of complex numbers in terms of signed reals. (Contributed by NM, 22-Feb-1996.) (New usage is discouraged.)

Assertion

Ref	Expression
ltresr	|- ( <. A , 0R >. <RR <. B , 0R >. <-> A <R B )

Proof of Theorem ltresr

Dummy variables x y z w are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		ltrelre 9583	. . . 4 |- <RR C_ ( RR X. RR )
2	1	brel 4901	. . 3 |- ( <. A , 0R >. <RR <. B , 0R >. -> ( <. A , 0R >. e. RR /\ <. B , 0R >. e. RR ) )
3		opelreal 9579	. . . 4 |- ( <. A , 0R >. e. RR <-> A e. R. )
4		opelreal 9579	. . . 4 |- ( <. B , 0R >. e. RR <-> B e. R. )
5	3, 4	anbi12i 708	. . 3 |- ( ( <. A , 0R >. e. RR /\ <. B , 0R >. e. RR ) <-> ( A e. R. /\ B e. R. ) )
6	2, 5	sylib 201	. 2 |- ( <. A , 0R >. <RR <. B , 0R >. -> ( A e. R. /\ B e. R. ) )
7		ltrelsr 9517	. . 3 |- <R C_ ( R. X. R. )
8	7	brel 4901	. 2 |- ( A <R B -> ( A e. R. /\ B e. R. ) )
9		opex 4677	. . . . . . 7 |- <. A , 0R >. e. _V
10		opex 4677	. . . . . . 7 |- <. B , 0R >. e. _V
11		eleq1 2527	. . . . . . . . 9 |- ( x = <. A , 0R >. -> ( x e. RR <-> <. A , 0R >. e. RR ) )
12	11	anbi1d 716	. . . . . . . 8 |- ( x = <. A , 0R >. -> ( ( x e. RR /\ y e. RR ) <-> ( <. A , 0R >. e. RR /\ y e. RR ) ) )
13		eqeq1 2465	. . . . . . . . . . 11 |- ( x = <. A , 0R >. -> ( x = <. z , 0R >. <-> <. A , 0R >. = <. z , 0R >. ) )
14	13	anbi1d 716	. . . . . . . . . 10 |- ( x = <. A , 0R >. -> ( ( x = <. z , 0R >. /\ y = <. w , 0R >. ) <-> ( <. A , 0R >. = <. z , 0R >. /\ y = <. w , 0R >. ) ) )
15	14	anbi1d 716	. . . . . . . . 9 |- ( x = <. A , 0R >. -> ( ( ( x = <. z , 0R >. /\ y = <. w , 0R >. ) /\ z <R w ) <-> ( ( <. A , 0R >. = <. z , 0R >. /\ y = <. w , 0R >. ) /\ z <R w ) ) )
16	15	2exbidv 1780	. . . . . . . 8 |- ( x = <. A , 0R >. -> ( E. z E. w ( ( x = <. z , 0R >. /\ y = <. w , 0R >. ) /\ z <R w ) <-> E. z E. w ( ( <. A , 0R >. = <. z , 0R >. /\ y = <. w , 0R >. ) /\ z <R w ) ) )
17	12, 16	anbi12d 722	. . . . . . 7 |- ( x = <. A , 0R >. -> ( ( ( x e. RR /\ y e. RR ) /\ E. z E. w ( ( x = <. z , 0R >. /\ y = <. w , 0R >. ) /\ z <R w ) ) <-> ( ( <. A , 0R >. e. RR /\ y e. RR ) /\ E. z E. w ( ( <. A , 0R >. = <. z , 0R >. /\ y = <. w , 0R >. ) /\ z <R w ) ) ) )
18		eleq1 2527	. . . . . . . . 9 |- ( y = <. B , 0R >. -> ( y e. RR <-> <. B , 0R >. e. RR ) )
19	18	anbi2d 715	. . . . . . . 8 |- ( y = <. B , 0R >. -> ( ( <. A , 0R >. e. RR /\ y e. RR ) <-> ( <. A , 0R >. e. RR /\ <. B , 0R >. e. RR ) ) )
20		eqeq1 2465	. . . . . . . . . . 11 |- ( y = <. B , 0R >. -> ( y = <. w , 0R >. <-> <. B , 0R >. = <. w , 0R >. ) )
21	20	anbi2d 715	. . . . . . . . . 10 |- ( y = <. B , 0R >. -> ( ( <. A , 0R >. = <. z , 0R >. /\ y = <. w , 0R >. ) <-> ( <. A , 0R >. = <. z , 0R >. /\ <. B , 0R >. = <. w , 0R >. ) ) )
22	21	anbi1d 716	. . . . . . . . 9 |- ( y = <. B , 0R >. -> ( ( ( <. A , 0R >. = <. z , 0R >. /\ y = <. w , 0R >. ) /\ z <R w ) <-> ( ( <. A , 0R >. = <. z , 0R >. /\ <. B , 0R >. = <. w , 0R >. ) /\ z <R w ) ) )
23	22	2exbidv 1780	. . . . . . . 8 |- ( y = <. B , 0R >. -> ( E. z E. w ( ( <. A , 0R >. = <. z , 0R >. /\ y = <. w , 0R >. ) /\ z <R w ) <-> E. z E. w ( ( <. A , 0R >. = <. z , 0R >. /\ <. B , 0R >. = <. w , 0R >. ) /\ z <R w ) ) )
24	19, 23	anbi12d 722	. . . . . . 7 |- ( y = <. B , 0R >. -> ( ( ( <. A , 0R >. e. RR /\ y e. RR ) /\ E. z E. w ( ( <. A , 0R >. = <. z , 0R >. /\ y = <. w , 0R >. ) /\ z <R w ) ) <-> ( ( <. A , 0R >. e. RR /\ <. B , 0R >. e. RR ) /\ E. z E. w ( ( <. A , 0R >. = <. z , 0R >. /\ <. B , 0R >. = <. w , 0R >. ) /\ z <R w ) ) ) )
25		df-lt 9577	. . . . . . 7 |- <RR = { <. x , y >. | ( ( x e. RR /\ y e. RR ) /\ E. z E. w ( ( x = <. z , 0R >. /\ y = <. w , 0R >. ) /\ z <R w ) ) }
26	9, 10, 17, 24, 25	brab 4737	. . . . . 6 |- ( <. A , 0R >. <RR <. B , 0R >. <-> ( ( <. A , 0R >. e. RR /\ <. B , 0R >. e. RR ) /\ E. z E. w ( ( <. A , 0R >. = <. z , 0R >. /\ <. B , 0R >. = <. w , 0R >. ) /\ z <R w ) ) )
27	26	baib 919	. . . . 5 |- ( ( <. A , 0R >. e. RR /\ <. B , 0R >. e. RR ) -> ( <. A , 0R >. <RR <. B , 0R >. <-> E. z E. w ( ( <. A , 0R >. = <. z , 0R >. /\ <. B , 0R >. = <. w , 0R >. ) /\ z <R w ) ) )
28		vex 3059	. . . . . . . . . . 11 |- z e. _V
29	28	eqresr 9586	. . . . . . . . . 10 |- ( <. z , 0R >. = <. A , 0R >. <-> z = A )
30		eqcom 2468	. . . . . . . . . 10 |- ( <. A , 0R >. = <. z , 0R >. <-> <. z , 0R >. = <. A , 0R >. )
31		eqcom 2468	. . . . . . . . . 10 |- ( A = z <-> z = A )
32	29, 30, 31	3bitr4i 285	. . . . . . . . 9 |- ( <. A , 0R >. = <. z , 0R >. <-> A = z )
33		vex 3059	. . . . . . . . . . 11 |- w e. _V
34	33	eqresr 9586	. . . . . . . . . 10 |- ( <. w , 0R >. = <. B , 0R >. <-> w = B )
35		eqcom 2468	. . . . . . . . . 10 |- ( <. B , 0R >. = <. w , 0R >. <-> <. w , 0R >. = <. B , 0R >. )
36		eqcom 2468	. . . . . . . . . 10 |- ( B = w <-> w = B )
37	34, 35, 36	3bitr4i 285	. . . . . . . . 9 |- ( <. B , 0R >. = <. w , 0R >. <-> B = w )
38	32, 37	anbi12i 708	. . . . . . . 8 |- ( ( <. A , 0R >. = <. z , 0R >. /\ <. B , 0R >. = <. w , 0R >. ) <-> ( A = z /\ B = w ) )
39	28, 33	opth2 4693	. . . . . . . 8 |- ( <. A , B >. = <. z , w >. <-> ( A = z /\ B = w ) )
40	38, 39	bitr4i 260	. . . . . . 7 |- ( ( <. A , 0R >. = <. z , 0R >. /\ <. B , 0R >. = <. w , 0R >. ) <-> <. A , B >. = <. z , w >. )
41	40	anbi1i 706	. . . . . 6 |- ( ( ( <. A , 0R >. = <. z , 0R >. /\ <. B , 0R >. = <. w , 0R >. ) /\ z <R w ) <-> ( <. A , B >. = <. z , w >. /\ z <R w ) )
42	41	2exbii 1729	. . . . 5 |- ( E. z E. w ( ( <. A , 0R >. = <. z , 0R >. /\ <. B , 0R >. = <. w , 0R >. ) /\ z <R w ) <-> E. z E. w ( <. A , B >. = <. z , w >. /\ z <R w ) )
43	27, 42	syl6bb 269	. . . 4 |- ( ( <. A , 0R >. e. RR /\ <. B , 0R >. e. RR ) -> ( <. A , 0R >. <RR <. B , 0R >. <-> E. z E. w ( <. A , B >. = <. z , w >. /\ z <R w ) ) )
44	3, 4, 43	syl2anbr 487	. . 3 |- ( ( A e. R. /\ B e. R. ) -> ( <. A , 0R >. <RR <. B , 0R >. <-> E. z E. w ( <. A , B >. = <. z , w >. /\ z <R w ) ) )
45		breq12 4420	. . . 4 |- ( ( z = A /\ w = B ) -> ( z <R w <-> A <R B ) )
46	45	copsex2g 4702	. . 3 |- ( ( A e. R. /\ B e. R. ) -> ( E. z E. w ( <. A , B >. = <. z , w >. /\ z <R w ) <-> A <R B ) )
47	44, 46	bitrd 261	. 2 |- ( ( A e. R. /\ B e. R. ) -> ( <. A , 0R >. <RR <. B , 0R >. <-> A <R B ) )
48	6, 8, 47	pm5.21nii 359	1 |- ( <. A , 0R >. <RR <. B , 0R >. <-> A <R B )

Syntax hints:   <-> wb 189   /\ wa 375   = wceq 1454   E.wex 1673   e. wcel 1897   <.cop 3985   class class class wbr 4415   R.cnr 9315   0Rc0r 9316   <R cltr 9321   RRcr 9563   <RR cltrr 9568

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1679  ax-4 1692  ax-5 1768  ax-6 1815  ax-7 1861  ax-8 1899  ax-9 1906  ax-10 1925  ax-11 1930  ax-12 1943  ax-13 2101  ax-ext 2441  ax-sep 4538  ax-nul 4547  ax-pow 4594  ax-pr 4652  ax-un 6609  ax-inf2 8171

This theorem depends on definitions:  df-bi 190  df-or 376  df-an 377  df-3or 992  df-3an 993  df-tru 1457  df-ex 1674  df-nf 1678  df-sb 1808  df-eu 2313  df-mo 2314  df-clab 2448  df-cleq 2454  df-clel 2457  df-nfc 2591  df-ne 2634  df-ral 2753  df-rex 2754  df-reu 2755  df-rmo 2756  df-rab 2757  df-v 3058  df-sbc 3279  df-csb 3375  df-dif 3418  df-un 3420  df-in 3422  df-ss 3429  df-pss 3431  df-nul 3743  df-if 3893  df-pw 3964  df-sn 3980  df-pr 3982  df-tp 3984  df-op 3986  df-uni 4212  df-int 4248  df-iun 4293  df-br 4416  df-opab 4475  df-mpt 4476  df-tr 4511  df-eprel 4763  df-id 4767  df-po 4773  df-so 4774  df-fr 4811  df-we 4813  df-xp 4858  df-rel 4859  df-cnv 4860  df-co 4861  df-dm 4862  df-rn 4863  df-res 4864  df-ima 4865  df-pred 5398  df-ord 5444  df-on 5445  df-lim 5446  df-suc 5447  df-iota 5564  df-fun 5602  df-fn 5603  df-f 5604  df-f1 5605  df-fo 5606  df-f1o 5607  df-fv 5608  df-ov 6317  df-oprab 6318  df-mpt2 6319  df-om 6719  df-1st 6819  df-2nd 6820  df-wrecs 7053  df-recs 7115  df-rdg 7153  df-1o 7207  df-oadd 7211  df-omul 7212  df-er 7388  df-ec 7390  df-qs 7394  df-ni 9322  df-pli 9323  df-mi 9324  df-lti 9325  df-plpq 9358  df-mpq 9359  df-ltpq 9360  df-enq 9361  df-nq 9362  df-erq 9363  df-plq 9364  df-mq 9365  df-1nq 9366  df-rq 9367  df-ltnq 9368  df-np 9431  df-1p 9432  df-enr 9505  df-nr 9506  df-ltr 9509  df-0r 9510  df-r 9574  df-lt 9577

This theorem is referenced by:  ltresr2  9590  axpre-lttri  9614  axpre-lttrn  9615  axpre-ltadd  9616  axpre-mulgt0  9617  axpre-sup  9618