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| Mirrors > Home > MPE Home > Th. List > bdayrn | Structured version Visualization version GIF version | ||
| Description: The birthday function's range is On. (Contributed by Scott Fenton, 14-Jun-2011.) |
| Ref | Expression |
|---|---|
| bdayrn | ⊢ ran bday = On |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | bdayfo 27953 | . 2 ⊢ bday : No –onto→On | |
| 2 | forn 6788 | . 2 ⊢ ( bday : No –onto→On → ran bday = On) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ ran bday = On |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 ran crn 5649 Oncon0 6352 –onto→wfo 6526 No csur 27916 bday cbday 27918 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-sep 5249 ax-pow 5327 ax-pr 5391 ax-un 7735 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-br 5104 df-opab 5168 df-mpt 5187 df-id 5543 df-xp 5654 df-rel 5655 df-cnv 5656 df-co 5657 df-dm 5658 df-rn 5659 df-suc 6358 df-fun 6530 df-fn 6531 df-f 6532 df-fo 6534 df-1o 8455 df-no 27919 df-bday 27921 |
| This theorem is used by: nobdaymin 28058 nocvxminlem 28059 etaslts2 28099 cutbdaybnd2lim 28102 bday0 28116 lrrecfr 28248 oniso 28576 bdayons 28581 |
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