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Mirrors > Home > ILE Home > Th. List > creui | Unicode version |
Description: The imaginary part of a complex number is unique. Proposition 10-1.3 of [Gleason] p. 130. (Contributed by NM, 9-May-1999.) (Proof shortened by Mario Carneiro, 27-May-2016.) |
Ref | Expression |
---|---|
creui |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cnre 7115 | . 2 | |
2 | simpr 108 | . . . . 5 | |
3 | eqcom 2083 | . . . . . . . . . 10 | |
4 | cru 7702 | . . . . . . . . . . 11 | |
5 | 4 | ancoms 264 | . . . . . . . . . 10 |
6 | 3, 5 | syl5bb 190 | . . . . . . . . 9 |
7 | 6 | anass1rs 535 | . . . . . . . 8 |
8 | 7 | rexbidva 2365 | . . . . . . 7 |
9 | biidd 170 | . . . . . . . . 9 | |
10 | 9 | ceqsrexv 2725 | . . . . . . . 8 |
11 | 10 | ad2antrr 471 | . . . . . . 7 |
12 | 8, 11 | bitrd 186 | . . . . . 6 |
13 | 12 | ralrimiva 2434 | . . . . 5 |
14 | reu6i 2783 | . . . . 5 | |
15 | 2, 13, 14 | syl2anc 403 | . . . 4 |
16 | eqeq1 2087 | . . . . . 6 | |
17 | 16 | rexbidv 2369 | . . . . 5 |
18 | 17 | reubidv 2537 | . . . 4 |
19 | 15, 18 | syl5ibrcom 155 | . . 3 |
20 | 19 | rexlimivv 2482 | . 2 |
21 | 1, 20 | syl 14 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 102 wb 103 wceq 1284 wcel 1433 wral 2348 wrex 2349 wreu 2350 (class class class)co 5532 cc 6979 cr 6980 ci 6983 caddc 6984 cmul 6986 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-in1 576 ax-in2 577 ax-io 662 ax-5 1376 ax-7 1377 ax-gen 1378 ax-ie1 1422 ax-ie2 1423 ax-8 1435 ax-10 1436 ax-11 1437 ax-i12 1438 ax-bndl 1439 ax-4 1440 ax-13 1444 ax-14 1445 ax-17 1459 ax-i9 1463 ax-ial 1467 ax-i5r 1468 ax-ext 2063 ax-sep 3896 ax-pow 3948 ax-pr 3964 ax-un 4188 ax-setind 4280 ax-cnex 7067 ax-resscn 7068 ax-1cn 7069 ax-1re 7070 ax-icn 7071 ax-addcl 7072 ax-addrcl 7073 ax-mulcl 7074 ax-mulrcl 7075 ax-addcom 7076 ax-mulcom 7077 ax-addass 7078 ax-mulass 7079 ax-distr 7080 ax-i2m1 7081 ax-0lt1 7082 ax-1rid 7083 ax-0id 7084 ax-rnegex 7085 ax-precex 7086 ax-cnre 7087 ax-pre-ltirr 7088 ax-pre-lttrn 7090 ax-pre-apti 7091 ax-pre-ltadd 7092 ax-pre-mulgt0 7093 |
This theorem depends on definitions: df-bi 115 df-3an 921 df-tru 1287 df-fal 1290 df-nf 1390 df-sb 1686 df-eu 1944 df-mo 1945 df-clab 2068 df-cleq 2074 df-clel 2077 df-nfc 2208 df-ne 2246 df-nel 2340 df-ral 2353 df-rex 2354 df-reu 2355 df-rab 2357 df-v 2603 df-sbc 2816 df-dif 2975 df-un 2977 df-in 2979 df-ss 2986 df-pw 3384 df-sn 3404 df-pr 3405 df-op 3407 df-uni 3602 df-br 3786 df-opab 3840 df-id 4048 df-xp 4369 df-rel 4370 df-cnv 4371 df-co 4372 df-dm 4373 df-iota 4887 df-fun 4924 df-fv 4930 df-riota 5488 df-ov 5535 df-oprab 5536 df-mpt2 5537 df-pnf 7155 df-mnf 7156 df-ltxr 7158 df-sub 7281 df-neg 7282 df-reap 7675 |
This theorem is referenced by: (None) |
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