Theorem eqreznegel 9614

Description: Two ways to express the image under negation of a set of integers. (Contributed by Paul Chapman, 21-Mar-2011.)

Assertion

Ref	Expression
eqreznegel	|- ( A C_ ZZ -> { z e. RR | -u z e. A } = { z e. ZZ | -u z e. A } )

Distinct variable group:   z, A

Proof of Theorem eqreznegel

Dummy variable w is distinct from all other variables.

Step	Hyp	Ref	Expression
1		ssel 3150	. . . . . . . 8 |- ( A C_ ZZ -> ( -u w e. A -> -u w e. ZZ ) )
2		recn 7944	. . . . . . . . 9 |- ( w e. RR -> w e. CC )
3		negid 8204	. . . . . . . . . . . 12 |- ( w e. CC -> ( w + -u w ) = 0 )
4		0z 9264	. . . . . . . . . . . 12 |- 0 e. ZZ
5	3, 4	eqeltrdi 2268	. . . . . . . . . . 11 |- ( w e. CC -> ( w + -u w ) e. ZZ )
6	5	pm4.71i 391	. . . . . . . . . 10 |- ( w e. CC <-> ( w e. CC /\ ( w + -u w ) e. ZZ ) )
7		zrevaddcl 9303	. . . . . . . . . 10 |- ( -u w e. ZZ -> ( ( w e. CC /\ ( w + -u w ) e. ZZ ) <-> w e. ZZ ) )
8	6, 7	bitrid 192	. . . . . . . . 9 |- ( -u w e. ZZ -> ( w e. CC <-> w e. ZZ ) )
9	2, 8	imbitrid 154	. . . . . . . 8 |- ( -u w e. ZZ -> ( w e. RR -> w e. ZZ ) )
10	1, 9	syl6 33	. . . . . . 7 |- ( A C_ ZZ -> ( -u w e. A -> ( w e. RR -> w e. ZZ ) ) )
11	10	com23 78	. . . . . 6 |- ( A C_ ZZ -> ( w e. RR -> ( -u w e. A -> w e. ZZ ) ) )
12	11	impd 254	. . . . 5 |- ( A C_ ZZ -> ( ( w e. RR /\ -u w e. A ) -> w e. ZZ ) )
13		simpr 110	. . . . . 6 |- ( ( w e. RR /\ -u w e. A ) -> -u w e. A )
14	13	a1i 9	. . . . 5 |- ( A C_ ZZ -> ( ( w e. RR /\ -u w e. A ) -> -u w e. A ) )
15	12, 14	jcad 307	. . . 4 |- ( A C_ ZZ -> ( ( w e. RR /\ -u w e. A ) -> ( w e. ZZ /\ -u w e. A ) ) )
16		zre 9257	. . . . 5 |- ( w e. ZZ -> w e. RR )
17	16	anim1i 340	. . . 4 |- ( ( w e. ZZ /\ -u w e. A ) -> ( w e. RR /\ -u w e. A ) )
18	15, 17	impbid1 142	. . 3 |- ( A C_ ZZ -> ( ( w e. RR /\ -u w e. A ) <-> ( w e. ZZ /\ -u w e. A ) ) )
19		negeq 8150	. . . . 5 |- ( z = w -> -u z = -u w )
20	19	eleq1d 2246	. . . 4 |- ( z = w -> ( -u z e. A <-> -u w e. A ) )
21	20	elrab 2894	. . 3 |- ( w e. { z e. RR | -u z e. A } <-> ( w e. RR /\ -u w e. A ) )
22	20	elrab 2894	. . 3 |- ( w e. { z e. ZZ | -u z e. A } <-> ( w e. ZZ /\ -u w e. A ) )
23	18, 21, 22	3bitr4g 223	. 2 |- ( A C_ ZZ -> ( w e. { z e. RR | -u z e. A } <-> w e. { z e. ZZ | -u z e. A } ) )
24	23	eqrdv 2175	1 |- ( A C_ ZZ -> { z e. RR | -u z e. A } = { z e. ZZ | -u z e. A } )

Syntax hints:   -> wi 4   /\ wa 104   = wceq 1353   e. wcel 2148   {crab 2459   C_ wss 3130  (class class class)co 5875   CCcc 7809   RRcr 7810   0cc0 7811   + caddc 7814   -ucneg 8129   ZZcz 9253

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 614  ax-in2 615  ax-io 709  ax-5 1447  ax-7 1448  ax-gen 1449  ax-ie1 1493  ax-ie2 1494  ax-8 1504  ax-10 1505  ax-11 1506  ax-i12 1507  ax-bndl 1509  ax-4 1510  ax-17 1526  ax-i9 1530  ax-ial 1534  ax-i5r 1535  ax-13 2150  ax-14 2151  ax-ext 2159  ax-sep 4122  ax-pow 4175  ax-pr 4210  ax-un 4434  ax-setind 4537  ax-cnex 7902  ax-resscn 7903  ax-1cn 7904  ax-1re 7905  ax-icn 7906  ax-addcl 7907  ax-addrcl 7908  ax-mulcl 7909  ax-addcom 7911  ax-addass 7913  ax-distr 7915  ax-i2m1 7916  ax-0lt1 7917  ax-0id 7919  ax-rnegex 7920  ax-cnre 7922  ax-pre-ltirr 7923  ax-pre-ltwlin 7924  ax-pre-lttrn 7925  ax-pre-ltadd 7927

This theorem depends on definitions:  df-bi 117  df-3or 979  df-3an 980  df-tru 1356  df-fal 1359  df-nf 1461  df-sb 1763  df-eu 2029  df-mo 2030  df-clab 2164  df-cleq 2170  df-clel 2173  df-nfc 2308  df-ne 2348  df-nel 2443  df-ral 2460  df-rex 2461  df-reu 2462  df-rab 2464  df-v 2740  df-sbc 2964  df-dif 3132  df-un 3134  df-in 3136  df-ss 3143  df-pw 3578  df-sn 3599  df-pr 3600  df-op 3602  df-uni 3811  df-int 3846  df-br 4005  df-opab 4066  df-id 4294  df-xp 4633  df-rel 4634  df-cnv 4635  df-co 4636  df-dm 4637  df-iota 5179  df-fun 5219  df-fv 5225  df-riota 5831  df-ov 5878  df-oprab 5879  df-mpo 5880  df-pnf 7994  df-mnf 7995  df-xr 7996  df-ltxr 7997  df-le 7998  df-sub 8130  df-neg 8131  df-inn 8920  df-n0 9177  df-z 9254

This theorem is referenced by: (None)