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| Mirrors > Home > MPE Home > Th. List > alephfnon | Structured version Visualization version GIF version | ||
| Description: The aleph function is a function on the class of ordinal numbers. (Contributed by NM, 21-Oct-2003.) (Revised by Mario Carneiro, 13-Sep-2013.) |
| Ref | Expression |
|---|---|
| alephfnon | ⊢ ℵ Fn On |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rdgfnon 8404 | . 2 ⊢ rec(har, ω) Fn On | |
| 2 | df-aleph 9925 | . . 3 ⊢ ℵ = rec(har, ω) | |
| 3 | 2 | fneq1i 6632 | . 2 ⊢ (ℵ Fn On ↔ rec(har, ω) Fn On) |
| 4 | 1, 3 | mpbir 234 | 1 ⊢ ℵ Fn On |
| Colors of variables: wff setvar class |
| Syntax hints: Oncon0 6360 Fn wfn 6531 ωcom 7861 reccrdg 8395 harchar 9517 ℵcale 9921 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1823 ax-4 1837 ax-5 1938 ax-6 1995 ax-7 2036 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-rep 5237 ax-sep 5256 ax-nul 5268 ax-pr 5404 ax-un 7732 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1571 df-fal 1581 df-ex 1808 df-nf 1812 df-sb 2095 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3078 df-rex 3088 df-reu 3368 df-rab 3415 df-v 3455 df-sbc 3744 df-csb 3853 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-pss 3924 df-nul 4286 df-if 4487 df-pw 4563 df-sn 4589 df-pr 4591 df-op 4595 df-uni 4872 df-iun 4957 df-br 5109 df-opab 5173 df-mpt 5192 df-tr 5218 df-id 5556 df-eprel 5561 df-po 5569 df-so 5570 df-fr 5614 df-we 5616 df-xp 5667 df-rel 5668 df-cnv 5669 df-co 5670 df-dm 5671 df-rn 5672 df-res 5673 df-ima 5674 df-pred 6302 df-ord 6363 df-on 6364 df-suc 6366 df-iota 6492 df-fun 6538 df-fn 6539 df-f 6540 df-f1 6541 df-fo 6542 df-f1o 6543 df-fv 6544 df-ov 7413 df-2nd 7986 df-frecs 8277 df-wrecs 8308 df-recs 8357 df-rdg 8396 df-aleph 9925 |
| This theorem is referenced by: alephon 10052 alephcard 10053 alephnbtwn 10054 alephgeom 10065 alephf1 10068 infenaleph 10074 isinfcard 10075 alephiso 10081 alephsmo 10085 alephf1ALT 10086 alephfplem1 10087 alephfplem3 10089 alephsing 10259 alephadd 10561 alephreg 10566 pwcfsdom 10567 cfpwsdom 10568 gch2 10659 gch3 10660 |
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