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Mirrors > Home > MPE Home > Th. List > elixpsn | Structured version Visualization version Unicode version |
Description: Membership in a class of singleton functions. (Contributed by Stefan O'Rear, 24-Jan-2015.) |
Ref | Expression |
---|---|
elixpsn |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | sneq 4187 | . . . 4 | |
2 | 1 | ixpeq1d 7920 | . . 3 |
3 | 2 | eleq2d 2687 | . 2 |
4 | opeq1 4402 | . . . . 5 | |
5 | 4 | sneqd 4189 | . . . 4 |
6 | 5 | eqeq2d 2632 | . . 3 |
7 | 6 | rexbidv 3052 | . 2 |
8 | elex 3212 | . . 3 | |
9 | snex 4908 | . . . . 5 | |
10 | eleq1 2689 | . . . . 5 | |
11 | 9, 10 | mpbiri 248 | . . . 4 |
12 | 11 | rexlimivw 3029 | . . 3 |
13 | eleq1 2689 | . . . 4 | |
14 | eqeq1 2626 | . . . . 5 | |
15 | 14 | rexbidv 3052 | . . . 4 |
16 | vex 3203 | . . . . . 6 | |
17 | 16 | elixp 7915 | . . . . 5 |
18 | vex 3203 | . . . . . . 7 | |
19 | fveq2 6191 | . . . . . . . 8 | |
20 | 19 | eleq1d 2686 | . . . . . . 7 |
21 | 18, 20 | ralsn 4222 | . . . . . 6 |
22 | 21 | anbi2i 730 | . . . . 5 |
23 | simpl 473 | . . . . . . . . 9 | |
24 | fveq2 6191 | . . . . . . . . . . . . 13 | |
25 | 24 | eleq1d 2686 | . . . . . . . . . . . 12 |
26 | 18, 25 | ralsn 4222 | . . . . . . . . . . 11 |
27 | 26 | biimpri 218 | . . . . . . . . . 10 |
28 | 27 | adantl 482 | . . . . . . . . 9 |
29 | ffnfv 6388 | . . . . . . . . 9 | |
30 | 23, 28, 29 | sylanbrc 698 | . . . . . . . 8 |
31 | 18 | fsn2 6403 | . . . . . . . 8 |
32 | 30, 31 | sylib 208 | . . . . . . 7 |
33 | opeq2 4403 | . . . . . . . . . 10 | |
34 | 33 | sneqd 4189 | . . . . . . . . 9 |
35 | 34 | eqeq2d 2632 | . . . . . . . 8 |
36 | 35 | rspcev 3309 | . . . . . . 7 |
37 | 32, 36 | syl 17 | . . . . . 6 |
38 | vex 3203 | . . . . . . . . . . 11 | |
39 | 18, 38 | fvsn 6446 | . . . . . . . . . 10 |
40 | id 22 | . . . . . . . . . 10 | |
41 | 39, 40 | syl5eqel 2705 | . . . . . . . . 9 |
42 | 18, 38 | fnsn 5946 | . . . . . . . . 9 |
43 | 41, 42 | jctil 560 | . . . . . . . 8 |
44 | fneq1 5979 | . . . . . . . . 9 | |
45 | fveq1 6190 | . . . . . . . . . 10 | |
46 | 45 | eleq1d 2686 | . . . . . . . . 9 |
47 | 44, 46 | anbi12d 747 | . . . . . . . 8 |
48 | 43, 47 | syl5ibrcom 237 | . . . . . . 7 |
49 | 48 | rexlimiv 3027 | . . . . . 6 |
50 | 37, 49 | impbii 199 | . . . . 5 |
51 | 17, 22, 50 | 3bitri 286 | . . . 4 |
52 | 13, 15, 51 | vtoclbg 3267 | . . 3 |
53 | 8, 12, 52 | pm5.21nii 368 | . 2 |
54 | 3, 7, 53 | vtoclbg 3267 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wb 196 wa 384 wceq 1483 wcel 1990 wral 2912 wrex 2913 cvv 3200 csn 4177 cop 4183 wfn 5883 wf 5884 cfv 5888 cixp 7908 |
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-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 |
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-reu 2919 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-uni 4437 df-br 4654 df-opab 4713 df-mpt 4730 df-id 5024 df-xp 5120 df-rel 5121 df-cnv 5122 df-co 5123 df-dm 5124 df-rn 5125 df-res 5126 df-ima 5127 df-iota 5851 df-fun 5890 df-fn 5891 df-f 5892 df-f1 5893 df-fo 5894 df-f1o 5895 df-fv 5896 df-ixp 7909 |
This theorem is referenced by: ixpsnf1o 7948 hoidmv1le 40808 |
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