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Mirrors > Home > MPE Home > Th. List > alephord3 | Structured version Visualization version GIF version |
Description: Ordering property of the aleph function. (Contributed by NM, 11-Nov-2003.) |
Ref | Expression |
---|---|
alephord3 | ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On) → (𝐴 ⊆ 𝐵 ↔ (ℵ‘𝐴) ⊆ (ℵ‘𝐵))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | alephord2 9832 | . . . 4 ⊢ ((𝐵 ∈ On ∧ 𝐴 ∈ On) → (𝐵 ∈ 𝐴 ↔ (ℵ‘𝐵) ∈ (ℵ‘𝐴))) | |
2 | 1 | ancoms 459 | . . 3 ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On) → (𝐵 ∈ 𝐴 ↔ (ℵ‘𝐵) ∈ (ℵ‘𝐴))) |
3 | 2 | notbid 318 | . 2 ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On) → (¬ 𝐵 ∈ 𝐴 ↔ ¬ (ℵ‘𝐵) ∈ (ℵ‘𝐴))) |
4 | ontri1 6300 | . 2 ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On) → (𝐴 ⊆ 𝐵 ↔ ¬ 𝐵 ∈ 𝐴)) | |
5 | alephon 9825 | . . . 4 ⊢ (ℵ‘𝐴) ∈ On | |
6 | alephon 9825 | . . . 4 ⊢ (ℵ‘𝐵) ∈ On | |
7 | ontri1 6300 | . . . 4 ⊢ (((ℵ‘𝐴) ∈ On ∧ (ℵ‘𝐵) ∈ On) → ((ℵ‘𝐴) ⊆ (ℵ‘𝐵) ↔ ¬ (ℵ‘𝐵) ∈ (ℵ‘𝐴))) | |
8 | 5, 6, 7 | mp2an 689 | . . 3 ⊢ ((ℵ‘𝐴) ⊆ (ℵ‘𝐵) ↔ ¬ (ℵ‘𝐵) ∈ (ℵ‘𝐴)) |
9 | 8 | a1i 11 | . 2 ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On) → ((ℵ‘𝐴) ⊆ (ℵ‘𝐵) ↔ ¬ (ℵ‘𝐵) ∈ (ℵ‘𝐴))) |
10 | 3, 4, 9 | 3bitr4d 311 | 1 ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On) → (𝐴 ⊆ 𝐵 ↔ (ℵ‘𝐴) ⊆ (ℵ‘𝐵))) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ↔ wb 205 ∧ wa 396 ∈ wcel 2106 ⊆ wss 3887 Oncon0 6266 ‘cfv 6433 ℵcale 9694 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-rep 5209 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 ax-inf2 9399 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-ral 3069 df-rex 3070 df-rmo 3071 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-pss 3906 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4840 df-int 4880 df-iun 4926 df-br 5075 df-opab 5137 df-mpt 5158 df-tr 5192 df-id 5489 df-eprel 5495 df-po 5503 df-so 5504 df-fr 5544 df-se 5545 df-we 5546 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-pred 6202 df-ord 6269 df-on 6270 df-lim 6271 df-suc 6272 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-isom 6442 df-riota 7232 df-ov 7278 df-om 7713 df-2nd 7832 df-frecs 8097 df-wrecs 8128 df-recs 8202 df-rdg 8241 df-1o 8297 df-er 8498 df-en 8734 df-dom 8735 df-sdom 8736 df-fin 8737 df-oi 9269 df-har 9316 df-card 9697 df-aleph 9698 |
This theorem is referenced by: alephgeom 9838 aleph11 9840 alephexp1 10335 minregex 41141 |
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