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Mirrors > Home > ILE Home > Th. List > nfunv | Unicode version |
Description: The universe is not a function. (Contributed by Raph Levien, 27-Jan-2004.) |
Ref | Expression |
---|---|
nfunv |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 0nelxp 4626 | . . 3 | |
2 | 0ex 4103 | . . . 4 | |
3 | df-rel 4605 | . . . . . 6 | |
4 | 3 | biimpi 119 | . . . . 5 |
5 | 4 | sseld 3136 | . . . 4 |
6 | 2, 5 | mpi 15 | . . 3 |
7 | 1, 6 | mto 652 | . 2 |
8 | funrel 5199 | . 2 | |
9 | 7, 8 | mto 652 | 1 |
Colors of variables: wff set class |
Syntax hints: wn 3 wcel 2135 cvv 2721 wss 3111 c0 3404 cxp 4596 wrel 4603 wfun 5176 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 604 ax-in2 605 ax-io 699 ax-5 1434 ax-7 1435 ax-gen 1436 ax-ie1 1480 ax-ie2 1481 ax-8 1491 ax-10 1492 ax-11 1493 ax-i12 1494 ax-bndl 1496 ax-4 1497 ax-17 1513 ax-i9 1517 ax-ial 1521 ax-i5r 1522 ax-14 2138 ax-ext 2146 ax-sep 4094 ax-nul 4102 ax-pow 4147 ax-pr 4181 |
This theorem depends on definitions: df-bi 116 df-3an 969 df-tru 1345 df-fal 1348 df-nf 1448 df-sb 1750 df-clab 2151 df-cleq 2157 df-clel 2160 df-nfc 2295 df-ne 2335 df-v 2723 df-dif 3113 df-un 3115 df-in 3117 df-ss 3124 df-nul 3405 df-pw 3555 df-sn 3576 df-pr 3577 df-op 3579 df-opab 4038 df-xp 4604 df-rel 4605 df-fun 5184 |
This theorem is referenced by: (None) |
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