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| Mirrors > Home > MPE Home > Th. List > harcl | Structured version Visualization version GIF version | ||
| Description: Values of the Hartogs function are ordinals (closure of the Hartogs function in the ordinals). (Contributed by Stefan O'Rear, 11-Feb-2015.) |
| Ref | Expression |
|---|---|
| harcl | ⊢ (har‘𝑋) ∈ On |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | harf 9527 | . 2 ⊢ har:V⟶On | |
| 2 | 0elon 6420 | . 2 ⊢ ∅ ∈ On | |
| 3 | 1, 2 | f0cli 7097 | 1 ⊢ (har‘𝑋) ∈ On |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2146 Vcvv 3457 Oncon0 6364 ‘cfv 6540 harchar 9525 |
| 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 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2737 ax-rep 5240 ax-sep 5259 ax-nul 5271 ax-pow 5338 ax-pr 5406 ax-un 7742 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-ral 3082 df-rex 3092 df-rmo 3371 df-reu 3372 df-rab 3419 df-v 3459 df-sbc 3747 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-pss 3926 df-nul 4287 df-if 4490 df-pw 4566 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4875 df-iun 4960 df-br 5112 df-opab 5176 df-mpt 5195 df-tr 5221 df-id 5558 df-eprel 5563 df-po 5571 df-so 5572 df-fr 5616 df-se 5617 df-we 5618 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-pred 6306 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6496 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-isom 6549 df-riota 7376 df-ov 7422 df-2nd 7993 df-frecs 8284 df-wrecs 8315 df-recs 8364 df-en 8950 df-dom 8951 df-oi 9479 df-har 9526 |
| This theorem is used by: harndom 9531 harcard 9980 harsdom 9997 onsdom 9998 harval2 9999 alephon 10069 dfac12lem2 10144 dfac12r 10146 hsmexlem9 10424 hsmexlem6 10430 pwcfsdom 10583 pwfseq 10664 gchaleph2 10672 hargch 10673 gchhar 10679 gchacg 10680 ttac 43821 isnumbasgrplem2 43889 isnumbasabl 43891 |
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