Theorem ltresr 9506

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 9500	. . . 4 |- <RR C_ ( RR X. RR )
2	1	brel 5037	. . 3 |- ( <. A , 0R >. <RR <. B , 0R >. -> ( <. A , 0R >. e. RR /\ <. B , 0R >. e. RR ) )
3		opelreal 9496	. . . 4 |- ( <. A , 0R >. e. RR <-> A e. R. )
4		opelreal 9496	. . . 4 |- ( <. B , 0R >. e. RR <-> B e. R. )
5	3, 4	anbi12i 695	. . 3 |- ( ( <. A , 0R >. e. RR /\ <. B , 0R >. e. RR ) <-> ( A e. R. /\ B e. R. ) )
6	2, 5	sylib 196	. 2 |- ( <. A , 0R >. <RR <. B , 0R >. -> ( A e. R. /\ B e. R. ) )
7		ltrelsr 9434	. . 3 |- <R C_ ( R. X. R. )
8	7	brel 5037	. 2 |- ( A <R B -> ( A e. R. /\ B e. R. ) )
9		opex 4701	. . . . . . 7 |- <. A , 0R >. e. _V
10		opex 4701	. . . . . . 7 |- <. B , 0R >. e. _V
11		eleq1 2526	. . . . . . . . 9 |- ( x = <. A , 0R >. -> ( x e. RR <-> <. A , 0R >. e. RR ) )
12	11	anbi1d 702	. . . . . . . 8 |- ( x = <. A , 0R >. -> ( ( x e. RR /\ y e. RR ) <-> ( <. A , 0R >. e. RR /\ y e. RR ) ) )
13		eqeq1 2458	. . . . . . . . . . 11 |- ( x = <. A , 0R >. -> ( x = <. z , 0R >. <-> <. A , 0R >. = <. z , 0R >. ) )
14	13	anbi1d 702	. . . . . . . . . 10 |- ( x = <. A , 0R >. -> ( ( x = <. z , 0R >. /\ y = <. w , 0R >. ) <-> ( <. A , 0R >. = <. z , 0R >. /\ y = <. w , 0R >. ) ) )
15	14	anbi1d 702	. . . . . . . . 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 1721	. . . . . . . 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 708	. . . . . . 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 2526	. . . . . . . . 9 |- ( y = <. B , 0R >. -> ( y e. RR <-> <. B , 0R >. e. RR ) )
19	18	anbi2d 701	. . . . . . . 8 |- ( y = <. B , 0R >. -> ( ( <. A , 0R >. e. RR /\ y e. RR ) <-> ( <. A , 0R >. e. RR /\ <. B , 0R >. e. RR ) ) )
20		eqeq1 2458	. . . . . . . . . . 11 |- ( y = <. B , 0R >. -> ( y = <. w , 0R >. <-> <. B , 0R >. = <. w , 0R >. ) )
21	20	anbi2d 701	. . . . . . . . . 10 |- ( y = <. B , 0R >. -> ( ( <. A , 0R >. = <. z , 0R >. /\ y = <. w , 0R >. ) <-> ( <. A , 0R >. = <. z , 0R >. /\ <. B , 0R >. = <. w , 0R >. ) ) )
22	21	anbi1d 702	. . . . . . . . 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 1721	. . . . . . . 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 708	. . . . . . 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 9494	. . . . . . 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 4759	. . . . . 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 901	. . . . 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 3109	. . . . . . . . . . 11 |- z e. _V
29	28	eqresr 9503	. . . . . . . . . 10 |- ( <. z , 0R >. = <. A , 0R >. <-> z = A )
30		eqcom 2463	. . . . . . . . . 10 |- ( <. A , 0R >. = <. z , 0R >. <-> <. z , 0R >. = <. A , 0R >. )
31		eqcom 2463	. . . . . . . . . 10 |- ( A = z <-> z = A )
32	29, 30, 31	3bitr4i 277	. . . . . . . . 9 |- ( <. A , 0R >. = <. z , 0R >. <-> A = z )
33		vex 3109	. . . . . . . . . . 11 |- w e. _V
34	33	eqresr 9503	. . . . . . . . . 10 |- ( <. w , 0R >. = <. B , 0R >. <-> w = B )
35		eqcom 2463	. . . . . . . . . 10 |- ( <. B , 0R >. = <. w , 0R >. <-> <. w , 0R >. = <. B , 0R >. )
36		eqcom 2463	. . . . . . . . . 10 |- ( B = w <-> w = B )
37	34, 35, 36	3bitr4i 277	. . . . . . . . 9 |- ( <. B , 0R >. = <. w , 0R >. <-> B = w )
38	32, 37	anbi12i 695	. . . . . . . 8 |- ( ( <. A , 0R >. = <. z , 0R >. /\ <. B , 0R >. = <. w , 0R >. ) <-> ( A = z /\ B = w ) )
39	28, 33	opth2 4715	. . . . . . . 8 |- ( <. A , B >. = <. z , w >. <-> ( A = z /\ B = w ) )
40	38, 39	bitr4i 252	. . . . . . 7 |- ( ( <. A , 0R >. = <. z , 0R >. /\ <. B , 0R >. = <. w , 0R >. ) <-> <. A , B >. = <. z , w >. )
41	40	anbi1i 693	. . . . . 6 |- ( ( ( <. A , 0R >. = <. z , 0R >. /\ <. B , 0R >. = <. w , 0R >. ) /\ z <R w ) <-> ( <. A , B >. = <. z , w >. /\ z <R w ) )
42	41	2exbii 1673	. . . . 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 261	. . . 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 478	. . 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 4444	. . . 4 |- ( ( z = A /\ w = B ) -> ( z <R w <-> A <R B ) )
46	45	copsex2g 4724	. . 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 253	. 2 |- ( ( A e. R. /\ B e. R. ) -> ( <. A , 0R >. <RR <. B , 0R >. <-> A <R B ) )
48	6, 8, 47	pm5.21nii 351	1 |- ( <. A , 0R >. <RR <. B , 0R >. <-> A <R B )

Syntax hints:   <-> wb 184   /\ wa 367   = wceq 1398   E.wex 1617   e. wcel 1823   <.cop 4022   class class class wbr 4439   R.cnr 9232   0Rc0r 9233   <R cltr 9238   RRcr 9480   <RR cltrr 9485

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1623  ax-4 1636  ax-5 1709  ax-6 1752  ax-7 1795  ax-8 1825  ax-9 1827  ax-10 1842  ax-11 1847  ax-12 1859  ax-13 2004  ax-ext 2432  ax-sep 4560  ax-nul 4568  ax-pow 4615  ax-pr 4676  ax-un 6565  ax-inf2 8049

This theorem depends on definitions:  df-bi 185  df-or 368  df-an 369  df-3or 972  df-3an 973  df-tru 1401  df-ex 1618  df-nf 1622  df-sb 1745  df-eu 2288  df-mo 2289  df-clab 2440  df-cleq 2446  df-clel 2449  df-nfc 2604  df-ne 2651  df-ral 2809  df-rex 2810  df-reu 2811  df-rmo 2812  df-rab 2813  df-v 3108  df-sbc 3325  df-csb 3421  df-dif 3464  df-un 3466  df-in 3468  df-ss 3475  df-pss 3477  df-nul 3784  df-if 3930  df-pw 4001  df-sn 4017  df-pr 4019  df-tp 4021  df-op 4023  df-uni 4236  df-int 4272  df-iun 4317  df-br 4440  df-opab 4498  df-mpt 4499  df-tr 4533  df-eprel 4780  df-id 4784  df-po 4789  df-so 4790  df-fr 4827  df-we 4829  df-ord 4870  df-on 4871  df-lim 4872  df-suc 4873  df-xp 4994  df-rel 4995  df-cnv 4996  df-co 4997  df-dm 4998  df-rn 4999  df-res 5000  df-ima 5001  df-iota 5534  df-fun 5572  df-fn 5573  df-f 5574  df-f1 5575  df-fo 5576  df-f1o 5577  df-fv 5578  df-ov 6273  df-oprab 6274  df-mpt2 6275  df-om 6674  df-1st 6773  df-2nd 6774  df-recs 7034  df-rdg 7068  df-1o 7122  df-oadd 7126  df-omul 7127  df-er 7303  df-ec 7305  df-qs 7309  df-ni 9239  df-pli 9240  df-mi 9241  df-lti 9242  df-plpq 9275  df-mpq 9276  df-ltpq 9277  df-enq 9278  df-nq 9279  df-erq 9280  df-plq 9281  df-mq 9282  df-1nq 9283  df-rq 9284  df-ltnq 9285  df-np 9348  df-1p 9349  df-enr 9422  df-nr 9423  df-ltr 9426  df-0r 9427  df-r 9491  df-lt 9494

This theorem is referenced by:  ltresr2  9507  axpre-lttri  9531  axpre-lttrn  9532  axpre-ltadd  9533  axpre-mulgt0  9534  axpre-sup  9535