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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 27852 | . 2 ⊢ bday : No –onto→On | |
| 2 | forn 6795 | . 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 1569 ran crn 5661 Oncon0 6360 –onto→wfo 6534 No csur 27815 bday cbday 27817 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1824 ax-4 1838 ax-5 1939 ax-6 1996 ax-7 2037 ax-8 2144 ax-9 2152 ax-10 2175 ax-11 2191 ax-12 2212 ax-ext 2734 ax-sep 5256 ax-pow 5335 ax-pr 5403 ax-un 7734 |
| This proof depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1104 df-tru 1572 df-fal 1582 df-ex 1809 df-nf 1813 df-sb 2096 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-ral 3079 df-rex 3089 df-rab 3416 df-v 3456 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4487 df-pw 4563 df-sn 4589 df-pr 4591 df-op 4595 df-uni 4872 df-br 5109 df-opab 5173 df-mpt 5192 df-id 5555 df-xp 5666 df-rel 5667 df-cnv 5668 df-co 5669 df-dm 5670 df-rn 5671 df-suc 6366 df-fun 6538 df-fn 6539 df-f 6540 df-fo 6542 df-1o 8451 df-no 27818 df-bday 27820 |
| This theorem is used by: nobdaymin 27957 nocvxminlem 27958 etaslts2 27998 cutbdaybnd2lim 28001 bday0 28015 lrrecfr 28147 oniso 28475 bdayons 28480 |
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