Theorem ltresr 9408

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 9402	. . . 4 |- <RR C_ ( RR X. RR )
2	1	brel 4985	. . 3 |- ( <. A , 0R >. <RR <. B , 0R >. -> ( <. A , 0R >. e. RR /\ <. B , 0R >. e. RR ) )
3		opelreal 9398	. . . 4 |- ( <. A , 0R >. e. RR <-> A e. R. )
4		opelreal 9398	. . . 4 |- ( <. B , 0R >. e. RR <-> B e. R. )
5	3, 4	anbi12i 697	. . 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 9339	. . 3 |- <R C_ ( R. X. R. )
8	7	brel 4985	. 2 |- ( A <R B -> ( A e. R. /\ B e. R. ) )
9		opex 4654	. . . . . . 7 |- <. A , 0R >. e. _V
10		opex 4654	. . . . . . 7 |- <. B , 0R >. e. _V
11		eleq1 2523	. . . . . . . . 9 |- ( x = <. A , 0R >. -> ( x e. RR <-> <. A , 0R >. e. RR ) )
12	11	anbi1d 704	. . . . . . . 8 |- ( x = <. A , 0R >. -> ( ( x e. RR /\ y e. RR ) <-> ( <. A , 0R >. e. RR /\ y e. RR ) ) )
13		eqeq1 2455	. . . . . . . . . . 11 |- ( x = <. A , 0R >. -> ( x = <. z , 0R >. <-> <. A , 0R >. = <. z , 0R >. ) )
14	13	anbi1d 704	. . . . . . . . . 10 |- ( x = <. A , 0R >. -> ( ( x = <. z , 0R >. /\ y = <. w , 0R >. ) <-> ( <. A , 0R >. = <. z , 0R >. /\ y = <. w , 0R >. ) ) )
15	14	anbi1d 704	. . . . . . . . 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 1683	. . . . . . . 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 710	. . . . . . 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 2523	. . . . . . . . 9 |- ( y = <. B , 0R >. -> ( y e. RR <-> <. B , 0R >. e. RR ) )
19	18	anbi2d 703	. . . . . . . 8 |- ( y = <. B , 0R >. -> ( ( <. A , 0R >. e. RR /\ y e. RR ) <-> ( <. A , 0R >. e. RR /\ <. B , 0R >. e. RR ) ) )
20		eqeq1 2455	. . . . . . . . . . 11 |- ( y = <. B , 0R >. -> ( y = <. w , 0R >. <-> <. B , 0R >. = <. w , 0R >. ) )
21	20	anbi2d 703	. . . . . . . . . 10 |- ( y = <. B , 0R >. -> ( ( <. A , 0R >. = <. z , 0R >. /\ y = <. w , 0R >. ) <-> ( <. A , 0R >. = <. z , 0R >. /\ <. B , 0R >. = <. w , 0R >. ) ) )
22	21	anbi1d 704	. . . . . . . . 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 1683	. . . . . . . 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 710	. . . . . . 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 9396	. . . . . . 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 4709	. . . . . 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 896	. . . . 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 3071	. . . . . . . . . . 11 |- z e. _V
29	28	eqresr 9405	. . . . . . . . . 10 |- ( <. z , 0R >. = <. A , 0R >. <-> z = A )
30		eqcom 2460	. . . . . . . . . 10 |- ( <. A , 0R >. = <. z , 0R >. <-> <. z , 0R >. = <. A , 0R >. )
31		eqcom 2460	. . . . . . . . . 10 |- ( A = z <-> z = A )
32	29, 30, 31	3bitr4i 277	. . . . . . . . 9 |- ( <. A , 0R >. = <. z , 0R >. <-> A = z )
33		vex 3071	. . . . . . . . . . 11 |- w e. _V
34	33	eqresr 9405	. . . . . . . . . 10 |- ( <. w , 0R >. = <. B , 0R >. <-> w = B )
35		eqcom 2460	. . . . . . . . . 10 |- ( <. B , 0R >. = <. w , 0R >. <-> <. w , 0R >. = <. B , 0R >. )
36		eqcom 2460	. . . . . . . . . 10 |- ( B = w <-> w = B )
37	34, 35, 36	3bitr4i 277	. . . . . . . . 9 |- ( <. B , 0R >. = <. w , 0R >. <-> B = w )
38	32, 37	anbi12i 697	. . . . . . . 8 |- ( ( <. A , 0R >. = <. z , 0R >. /\ <. B , 0R >. = <. w , 0R >. ) <-> ( A = z /\ B = w ) )
39	28, 33	opth2 4668	. . . . . . . 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 695	. . . . . 6 |- ( ( ( <. A , 0R >. = <. z , 0R >. /\ <. B , 0R >. = <. w , 0R >. ) /\ z <R w ) <-> ( <. A , B >. = <. z , w >. /\ z <R w ) )
42	41	2exbii 1636	. . . . 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 480	. . 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 4395	. . . 4 |- ( ( z = A /\ w = B ) -> ( z <R w <-> A <R B ) )
46	45	copsex2g 4677	. . 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 353	1 |- ( <. A , 0R >. <RR <. B , 0R >. <-> A <R B )

Syntax hints:   <-> wb 184   /\ wa 369   = wceq 1370   E.wex 1587   e. wcel 1758   <.cop 3981   class class class wbr 4390   R.cnr 9135   0Rc0r 9136   <R cltr 9141   RRcr 9382   <RR cltrr 9387

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1592  ax-4 1603  ax-5 1671  ax-6 1710  ax-7 1730  ax-8 1760  ax-9 1762  ax-10 1777  ax-11 1782  ax-12 1794  ax-13 1952  ax-ext 2430  ax-sep 4511  ax-nul 4519  ax-pow 4568  ax-pr 4629  ax-un 6472  ax-inf2 7948

This theorem depends on definitions:  df-bi 185  df-or 370  df-an 371  df-3or 966  df-3an 967  df-tru 1373  df-ex 1588  df-nf 1591  df-sb 1703  df-eu 2264  df-mo 2265  df-clab 2437  df-cleq 2443  df-clel 2446  df-nfc 2601  df-ne 2646  df-ral 2800  df-rex 2801  df-reu 2802  df-rmo 2803  df-rab 2804  df-v 3070  df-sbc 3285  df-csb 3387  df-dif 3429  df-un 3431  df-in 3433  df-ss 3440  df-pss 3442  df-nul 3736  df-if 3890  df-pw 3960  df-sn 3976  df-pr 3978  df-tp 3980  df-op 3982  df-uni 4190  df-int 4227  df-iun 4271  df-br 4391  df-opab 4449  df-mpt 4450  df-tr 4484  df-eprel 4730  df-id 4734  df-po 4739  df-so 4740  df-fr 4777  df-we 4779  df-ord 4820  df-on 4821  df-lim 4822  df-suc 4823  df-xp 4944  df-rel 4945  df-cnv 4946  df-co 4947  df-dm 4948  df-rn 4949  df-res 4950  df-ima 4951  df-iota 5479  df-fun 5518  df-fn 5519  df-f 5520  df-f1 5521  df-fo 5522  df-f1o 5523  df-fv 5524  df-ov 6193  df-oprab 6194  df-mpt2 6195  df-om 6577  df-1st 6677  df-2nd 6678  df-recs 6932  df-rdg 6966  df-1o 7020  df-oadd 7024  df-omul 7025  df-er 7201  df-ec 7203  df-qs 7207  df-ni 9142  df-pli 9143  df-mi 9144  df-lti 9145  df-plpq 9178  df-mpq 9179  df-ltpq 9180  df-enq 9181  df-nq 9182  df-erq 9183  df-plq 9184  df-mq 9185  df-1nq 9186  df-rq 9187  df-ltnq 9188  df-np 9251  df-1p 9252  df-enr 9327  df-nr 9328  df-ltr 9331  df-0r 9332  df-r 9393  df-lt 9396

This theorem is referenced by:  ltresr2  9409  axpre-lttri  9433  axpre-lttrn  9434  axpre-ltadd  9435  axpre-mulgt0  9436  axpre-sup  9437