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| Mirrors > Home > ILE Home > Th. List > fnconstg | Unicode version | ||
| Description: A cross product with a singleton is a constant function. (Contributed by NM, 24-Jul-2014.) |
| Ref | Expression |
|---|---|
| fnconstg |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fconstg 5584 |
. 2
| |
| 2 | ffn 5528 |
. 2
| |
| 3 | 1, 2 | syl 14 |
1
|
| 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 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4244 ax-pow 4306 ax-pr 4341 |
| This theorem depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-v 2823 df-un 3224 df-in 3226 df-ss 3233 df-pw 3687 df-sn 3711 df-pr 3712 df-op 3714 df-br 4126 df-opab 4188 df-mpt 4189 df-id 4433 df-xp 4775 df-rel 4776 df-cnv 4777 df-co 4778 df-dm 4779 df-rn 4780 df-fun 5374 df-fn 5375 df-f 5376 |
| This theorem is referenced by: fconst2g 5921 ofc1g 6314 ofc2g 6315 caofid0l 6319 caofid0r 6320 caofid1 6321 caofid2 6322 fczsupp0 6489 fczfsuppd 7287 pwsplusgval 14185 pwsmulrval 14186 dvidlemap 15715 dvidrelem 15716 dvidsslem 15717 nninfsellemeqinf 16964 |
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