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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 9545 | . 2 ⊢ har:V⟶On | |
| 2 | 0elon 6417 | . 2 ⊢ ∅ ∈ On | |
| 3 | 1, 2 | f0cli 7096 | 1 ⊢ (har‘𝑋) ∈ On |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2145 Vcvv 3451 Oncon0 6361 ‘cfv 6537 harchar 9543 |
| 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 2733 ax-rep 5232 ax-sep 5249 ax-nul 5260 ax-pow 5327 ax-pr 5391 ax-un 7749 |
| 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 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-rmo 3366 df-reu 3367 df-rab 3414 df-v 3453 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-se 5605 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-pred 6303 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-isom 6546 df-riota 7375 df-ov 7421 df-2nd 8000 df-frecs 8292 df-wrecs 8323 df-recs 8372 df-en 8967 df-dom 8968 df-oi 9497 df-har 9544 |
| This theorem is used by: harndom 9549 harcard 10052 harsdom 10069 onsdom 10070 harval2 10071 alephon 10141 dfac12lem2 10216 dfac12r 10218 hsmexlem9 10496 hsmexlem6 10502 pwcfsdom 10661 pwfseq 10742 gchaleph2 10750 hargch 10751 gchhar 10757 gchacg 10758 ttac 44022 isnumbasgrplem2 44090 isnumbasabl 44092 |
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