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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 4648 | . . 3 | |
2 | 0ex 4125 | . . . 4 | |
3 | df-rel 4627 | . . . . . 6 | |
4 | 3 | biimpi 120 | . . . . 5 |
5 | 4 | sseld 3152 | . . . 4 |
6 | 2, 5 | mpi 15 | . . 3 |
7 | 1, 6 | mto 662 | . 2 |
8 | funrel 5225 | . 2 | |
9 | 7, 8 | mto 662 | 1 |
Colors of variables: wff set class |
Syntax hints: wn 3 wcel 2146 cvv 2735 wss 3127 c0 3420 cxp 4618 wrel 4625 wfun 5202 |
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-in1 614 ax-in2 615 ax-io 709 ax-5 1445 ax-7 1446 ax-gen 1447 ax-ie1 1491 ax-ie2 1492 ax-8 1502 ax-10 1503 ax-11 1504 ax-i12 1505 ax-bndl 1507 ax-4 1508 ax-17 1524 ax-i9 1528 ax-ial 1532 ax-i5r 1533 ax-14 2149 ax-ext 2157 ax-sep 4116 ax-nul 4124 ax-pow 4169 ax-pr 4203 |
This theorem depends on definitions: df-bi 117 df-3an 980 df-tru 1356 df-fal 1359 df-nf 1459 df-sb 1761 df-clab 2162 df-cleq 2168 df-clel 2171 df-nfc 2306 df-ne 2346 df-v 2737 df-dif 3129 df-un 3131 df-in 3133 df-ss 3140 df-nul 3421 df-pw 3574 df-sn 3595 df-pr 3596 df-op 3598 df-opab 4060 df-xp 4626 df-rel 4627 df-fun 5210 |
This theorem is referenced by: (None) |
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