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Mirrors > Home > MPE Home > Th. List > alephord | Structured version Visualization version GIF version |
Description: Ordering property of the aleph function. (Contributed by NM, 26-Oct-2003.) (Revised by Mario Carneiro, 9-Feb-2013.) |
Ref | Expression |
---|---|
alephord | ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On) → (𝐴 ∈ 𝐵 ↔ (ℵ‘𝐴) ≺ (ℵ‘𝐵))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | alephordi 10110 | . . 3 ⊢ (𝐵 ∈ On → (𝐴 ∈ 𝐵 → (ℵ‘𝐴) ≺ (ℵ‘𝐵))) | |
2 | 1 | adantl 480 | . 2 ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On) → (𝐴 ∈ 𝐵 → (ℵ‘𝐴) ≺ (ℵ‘𝐵))) |
3 | brsdom 8998 | . . 3 ⊢ ((ℵ‘𝐴) ≺ (ℵ‘𝐵) ↔ ((ℵ‘𝐴) ≼ (ℵ‘𝐵) ∧ ¬ (ℵ‘𝐴) ≈ (ℵ‘𝐵))) | |
4 | alephon 10105 | . . . . . . . . 9 ⊢ (ℵ‘𝐴) ∈ On | |
5 | alephon 10105 | . . . . . . . . 9 ⊢ (ℵ‘𝐵) ∈ On | |
6 | domtriord 9153 | . . . . . . . . 9 ⊢ (((ℵ‘𝐴) ∈ On ∧ (ℵ‘𝐵) ∈ On) → ((ℵ‘𝐴) ≼ (ℵ‘𝐵) ↔ ¬ (ℵ‘𝐵) ≺ (ℵ‘𝐴))) | |
7 | 4, 5, 6 | mp2an 690 | . . . . . . . 8 ⊢ ((ℵ‘𝐴) ≼ (ℵ‘𝐵) ↔ ¬ (ℵ‘𝐵) ≺ (ℵ‘𝐴)) |
8 | alephordi 10110 | . . . . . . . . 9 ⊢ (𝐴 ∈ On → (𝐵 ∈ 𝐴 → (ℵ‘𝐵) ≺ (ℵ‘𝐴))) | |
9 | 8 | con3d 152 | . . . . . . . 8 ⊢ (𝐴 ∈ On → (¬ (ℵ‘𝐵) ≺ (ℵ‘𝐴) → ¬ 𝐵 ∈ 𝐴)) |
10 | 7, 9 | biimtrid 241 | . . . . . . 7 ⊢ (𝐴 ∈ On → ((ℵ‘𝐴) ≼ (ℵ‘𝐵) → ¬ 𝐵 ∈ 𝐴)) |
11 | 10 | adantr 479 | . . . . . 6 ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On) → ((ℵ‘𝐴) ≼ (ℵ‘𝐵) → ¬ 𝐵 ∈ 𝐴)) |
12 | ontri1 6402 | . . . . . 6 ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On) → (𝐴 ⊆ 𝐵 ↔ ¬ 𝐵 ∈ 𝐴)) | |
13 | 11, 12 | sylibrd 258 | . . . . 5 ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On) → ((ℵ‘𝐴) ≼ (ℵ‘𝐵) → 𝐴 ⊆ 𝐵)) |
14 | fveq2 6893 | . . . . . . 7 ⊢ (𝐴 = 𝐵 → (ℵ‘𝐴) = (ℵ‘𝐵)) | |
15 | eqeng 9009 | . . . . . . 7 ⊢ ((ℵ‘𝐴) ∈ On → ((ℵ‘𝐴) = (ℵ‘𝐵) → (ℵ‘𝐴) ≈ (ℵ‘𝐵))) | |
16 | 4, 14, 15 | mpsyl 68 | . . . . . 6 ⊢ (𝐴 = 𝐵 → (ℵ‘𝐴) ≈ (ℵ‘𝐵)) |
17 | 16 | necon3bi 2957 | . . . . 5 ⊢ (¬ (ℵ‘𝐴) ≈ (ℵ‘𝐵) → 𝐴 ≠ 𝐵) |
18 | 13, 17 | anim12d1 608 | . . . 4 ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On) → (((ℵ‘𝐴) ≼ (ℵ‘𝐵) ∧ ¬ (ℵ‘𝐴) ≈ (ℵ‘𝐵)) → (𝐴 ⊆ 𝐵 ∧ 𝐴 ≠ 𝐵))) |
19 | onelpss 6408 | . . . 4 ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On) → (𝐴 ∈ 𝐵 ↔ (𝐴 ⊆ 𝐵 ∧ 𝐴 ≠ 𝐵))) | |
20 | 18, 19 | sylibrd 258 | . . 3 ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On) → (((ℵ‘𝐴) ≼ (ℵ‘𝐵) ∧ ¬ (ℵ‘𝐴) ≈ (ℵ‘𝐵)) → 𝐴 ∈ 𝐵)) |
21 | 3, 20 | biimtrid 241 | . 2 ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On) → ((ℵ‘𝐴) ≺ (ℵ‘𝐵) → 𝐴 ∈ 𝐵)) |
22 | 2, 21 | impbid 211 | 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 394 = wceq 1534 ∈ wcel 2099 ≠ wne 2930 ⊆ wss 3946 class class class wbr 5145 Oncon0 6368 ‘cfv 6546 ≈ cen 8963 ≼ cdom 8964 ≺ csdm 8965 ℵcale 9972 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1790 ax-4 1804 ax-5 1906 ax-6 1964 ax-7 2004 ax-8 2101 ax-9 2109 ax-10 2130 ax-11 2147 ax-12 2167 ax-ext 2697 ax-rep 5282 ax-sep 5296 ax-nul 5303 ax-pow 5361 ax-pr 5425 ax-un 7738 ax-inf2 9677 |
This theorem depends on definitions: df-bi 206 df-an 395 df-or 846 df-3or 1085 df-3an 1086 df-tru 1537 df-fal 1547 df-ex 1775 df-nf 1779 df-sb 2061 df-mo 2529 df-eu 2558 df-clab 2704 df-cleq 2718 df-clel 2803 df-nfc 2878 df-ne 2931 df-ral 3052 df-rex 3061 df-rmo 3364 df-reu 3365 df-rab 3420 df-v 3464 df-sbc 3776 df-csb 3892 df-dif 3949 df-un 3951 df-in 3953 df-ss 3963 df-pss 3966 df-nul 4323 df-if 4524 df-pw 4599 df-sn 4624 df-pr 4626 df-op 4630 df-uni 4906 df-int 4947 df-iun 4995 df-br 5146 df-opab 5208 df-mpt 5229 df-tr 5263 df-id 5572 df-eprel 5578 df-po 5586 df-so 5587 df-fr 5629 df-se 5630 df-we 5631 df-xp 5680 df-rel 5681 df-cnv 5682 df-co 5683 df-dm 5684 df-rn 5685 df-res 5686 df-ima 5687 df-pred 6304 df-ord 6371 df-on 6372 df-lim 6373 df-suc 6374 df-iota 6498 df-fun 6548 df-fn 6549 df-f 6550 df-f1 6551 df-fo 6552 df-f1o 6553 df-fv 6554 df-isom 6555 df-riota 7372 df-ov 7419 df-om 7869 df-2nd 7996 df-frecs 8288 df-wrecs 8319 df-recs 8393 df-rdg 8432 df-er 8726 df-en 8967 df-dom 8968 df-sdom 8969 df-oi 9546 df-har 9593 df-card 9975 df-aleph 9976 |
This theorem is referenced by: alephord2 10112 alephdom 10117 alephval2 10606 alephiso2 43262 |
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