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Mirrors > Home > MPE Home > Th. List > axunnd | Structured version Visualization version Unicode version |
Description: A version of the Axiom of Union with no distinct variable conditions. (Contributed by NM, 2-Jan-2002.) |
Ref | Expression |
---|---|
axunnd |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | axunndlem1 9417 | . . . 4 | |
2 | nfnae 2318 | . . . . . 6 | |
3 | nfnae 2318 | . . . . . 6 | |
4 | 2, 3 | nfan 1828 | . . . . 5 |
5 | nfnae 2318 | . . . . . . 7 | |
6 | nfnae 2318 | . . . . . . 7 | |
7 | 5, 6 | nfan 1828 | . . . . . 6 |
8 | nfv 1843 | . . . . . . . 8 | |
9 | nfcvf 2788 | . . . . . . . . . . 11 | |
10 | 9 | adantr 481 | . . . . . . . . . 10 |
11 | nfcvd 2765 | . . . . . . . . . 10 | |
12 | 10, 11 | nfeld 2773 | . . . . . . . . 9 |
13 | nfcvf 2788 | . . . . . . . . . . 11 | |
14 | 13 | adantl 482 | . . . . . . . . . 10 |
15 | 11, 14 | nfeld 2773 | . . . . . . . . 9 |
16 | 12, 15 | nfand 1826 | . . . . . . . 8 |
17 | 8, 16 | nfexd 2167 | . . . . . . 7 |
18 | 17, 12 | nfimd 1823 | . . . . . 6 |
19 | 7, 18 | nfald 2165 | . . . . 5 |
20 | nfcvd 2765 | . . . . . . . . 9 | |
21 | nfcvf2 2789 | . . . . . . . . . 10 | |
22 | 21 | adantr 481 | . . . . . . . . 9 |
23 | 20, 22 | nfeqd 2772 | . . . . . . . 8 |
24 | 7, 23 | nfan1 2068 | . . . . . . 7 |
25 | elequ2 2004 | . . . . . . . . . . . 12 | |
26 | elequ1 1997 | . . . . . . . . . . . 12 | |
27 | 25, 26 | anbi12d 747 | . . . . . . . . . . 11 |
28 | 27 | a1i 11 | . . . . . . . . . 10 |
29 | 4, 16, 28 | cbvexd 2278 | . . . . . . . . 9 |
30 | 29 | adantr 481 | . . . . . . . 8 |
31 | 25 | adantl 482 | . . . . . . . 8 |
32 | 30, 31 | imbi12d 334 | . . . . . . 7 |
33 | 24, 32 | albid 2090 | . . . . . 6 |
34 | 33 | ex 450 | . . . . 5 |
35 | 4, 19, 34 | cbvexd 2278 | . . . 4 |
36 | 1, 35 | mpbii 223 | . . 3 |
37 | 36 | ex 450 | . 2 |
38 | nfae 2316 | . . . 4 | |
39 | nfae 2316 | . . . . . 6 | |
40 | elirrv 8504 | . . . . . . . . 9 | |
41 | elequ2 2004 | . . . . . . . . 9 | |
42 | 40, 41 | mtbiri 317 | . . . . . . . 8 |
43 | 42 | intnanrd 963 | . . . . . . 7 |
44 | 43 | sps 2055 | . . . . . 6 |
45 | 39, 44 | nexd 2089 | . . . . 5 |
46 | 45 | pm2.21d 118 | . . . 4 |
47 | 38, 46 | alrimi 2082 | . . 3 |
48 | 19.8a 2052 | . . 3 | |
49 | 47, 48 | syl 17 | . 2 |
50 | nfae 2316 | . . . 4 | |
51 | nfae 2316 | . . . . . 6 | |
52 | elirrv 8504 | . . . . . . . . 9 | |
53 | elequ1 1997 | . . . . . . . . 9 | |
54 | 52, 53 | mtbiri 317 | . . . . . . . 8 |
55 | 54 | intnand 962 | . . . . . . 7 |
56 | 55 | sps 2055 | . . . . . 6 |
57 | 51, 56 | nexd 2089 | . . . . 5 |
58 | 57 | pm2.21d 118 | . . . 4 |
59 | 50, 58 | alrimi 2082 | . . 3 |
60 | 59, 48 | syl 17 | . 2 |
61 | 37, 49, 60 | pm2.61ii 177 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wn 3 wi 4 wb 196 wa 384 wal 1481 wex 1704 wnfc 2751 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-8 1992 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-sep 4781 ax-nul 4789 ax-pr 4906 ax-un 6949 ax-reg 8497 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ne 2795 df-ral 2917 df-rex 2918 df-rab 2921 df-v 3202 df-sbc 3436 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-sn 4178 df-pr 4180 df-op 4184 df-br 4654 df-opab 4713 df-eprel 5029 df-fr 5073 |
This theorem is referenced by: zfcndun 9437 axunprim 31580 |
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