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Mirrors > Home > ILE Home > Th. List > elixpsn | Unicode version |
Description: Membership in a class of singleton functions. (Contributed by Stefan O'Rear, 24-Jan-2015.) |
Ref | Expression |
---|---|
elixpsn |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | sneq 3605 |
. . . 4
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2 | 1 | ixpeq1d 6712 |
. . 3
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3 | 2 | eleq2d 2247 |
. 2
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4 | opeq1 3780 |
. . . . 5
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5 | 4 | sneqd 3607 |
. . . 4
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6 | 5 | eqeq2d 2189 |
. . 3
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7 | 6 | rexbidv 2478 |
. 2
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8 | elex 2750 |
. . 3
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9 | vex 2742 |
. . . . . . 7
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10 | vex 2742 |
. . . . . . 7
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11 | 9, 10 | opex 4231 |
. . . . . 6
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12 | 11 | snex 4187 |
. . . . 5
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13 | eleq1 2240 |
. . . . 5
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14 | 12, 13 | mpbiri 168 |
. . . 4
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15 | 14 | rexlimivw 2590 |
. . 3
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16 | eleq1 2240 |
. . . 4
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17 | eqeq1 2184 |
. . . . 5
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18 | 17 | rexbidv 2478 |
. . . 4
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19 | vex 2742 |
. . . . . 6
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20 | 19 | elixp 6707 |
. . . . 5
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21 | fveq2 5517 |
. . . . . . . 8
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22 | 21 | eleq1d 2246 |
. . . . . . 7
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23 | 9, 22 | ralsn 3637 |
. . . . . 6
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
24 | 23 | anbi2i 457 |
. . . . 5
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25 | simpl 109 |
. . . . . . . . 9
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26 | fveq2 5517 |
. . . . . . . . . . . . 13
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27 | 26 | eleq1d 2246 |
. . . . . . . . . . . 12
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28 | 9, 27 | ralsn 3637 |
. . . . . . . . . . 11
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29 | 28 | biimpri 133 |
. . . . . . . . . 10
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30 | 29 | adantl 277 |
. . . . . . . . 9
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31 | ffnfv 5676 |
. . . . . . . . 9
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32 | 25, 30, 31 | sylanbrc 417 |
. . . . . . . 8
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33 | 9 | fsn2 5692 |
. . . . . . . 8
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34 | 32, 33 | sylib 122 |
. . . . . . 7
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35 | opeq2 3781 |
. . . . . . . . 9
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36 | 35 | sneqd 3607 |
. . . . . . . 8
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37 | 36 | rspceeqv 2861 |
. . . . . . 7
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38 | 34, 37 | syl 14 |
. . . . . 6
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39 | 9, 10 | fvsn 5713 |
. . . . . . . . . 10
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40 | id 19 |
. . . . . . . . . 10
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41 | 39, 40 | eqeltrid 2264 |
. . . . . . . . 9
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42 | 9, 10 | fnsn 5272 |
. . . . . . . . 9
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43 | 41, 42 | jctil 312 |
. . . . . . . 8
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44 | fneq1 5306 |
. . . . . . . . 9
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45 | fveq1 5516 |
. . . . . . . . . 10
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46 | 45 | eleq1d 2246 |
. . . . . . . . 9
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47 | 44, 46 | anbi12d 473 |
. . . . . . . 8
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48 | 43, 47 | syl5ibrcom 157 |
. . . . . . 7
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49 | 48 | rexlimiv 2588 |
. . . . . 6
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50 | 38, 49 | impbii 126 |
. . . . 5
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51 | 20, 24, 50 | 3bitri 206 |
. . . 4
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52 | 16, 18, 51 | vtoclbg 2800 |
. . 3
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53 | 8, 15, 52 | pm5.21nii 704 |
. 2
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54 | 3, 7, 53 | vtoclbg 2800 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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-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-14 2151 ax-ext 2159 ax-sep 4123 ax-pow 4176 ax-pr 4211 |
This theorem depends on definitions: df-bi 117 df-3an 980 df-tru 1356 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-ral 2460 df-rex 2461 df-reu 2462 df-v 2741 df-sbc 2965 df-un 3135 df-in 3137 df-ss 3144 df-pw 3579 df-sn 3600 df-pr 3601 df-op 3603 df-uni 3812 df-br 4006 df-opab 4067 df-mpt 4068 df-id 4295 df-xp 4634 df-rel 4635 df-cnv 4636 df-co 4637 df-dm 4638 df-rn 4639 df-res 4640 df-ima 4641 df-iota 5180 df-fun 5220 df-fn 5221 df-f 5222 df-f1 5223 df-fo 5224 df-f1o 5225 df-fv 5226 df-ixp 6701 |
This theorem is referenced by: ixpsnf1o 6738 |
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