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Mirrors > Home > MPE Home > Th. List > nndomogOLD | Structured version Visualization version GIF version |
Description: Obsolete version of nndomog 9251 as of 29-Nov-2024. (Contributed by NM, 17-Jun-1998.) Generalize from nndomo 9267. (Revised by RP, 5-Nov-2023.) (Proof modification is discouraged.) (New usage is discouraged.) |
Ref | Expression |
---|---|
nndomogOLD | ⊢ ((𝐴 ∈ ω ∧ 𝐵 ∈ On) → (𝐴 ≼ 𝐵 ↔ 𝐴 ⊆ 𝐵)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | php2 9246 | . . . . . 6 ⊢ ((𝐴 ∈ ω ∧ 𝐵 ⊊ 𝐴) → 𝐵 ≺ 𝐴) | |
2 | 1 | ex 412 | . . . . 5 ⊢ (𝐴 ∈ ω → (𝐵 ⊊ 𝐴 → 𝐵 ≺ 𝐴)) |
3 | domnsym 9138 | . . . . 5 ⊢ (𝐴 ≼ 𝐵 → ¬ 𝐵 ≺ 𝐴) | |
4 | 2, 3 | nsyli 157 | . . . 4 ⊢ (𝐴 ∈ ω → (𝐴 ≼ 𝐵 → ¬ 𝐵 ⊊ 𝐴)) |
5 | 4 | adantr 480 | . . 3 ⊢ ((𝐴 ∈ ω ∧ 𝐵 ∈ On) → (𝐴 ≼ 𝐵 → ¬ 𝐵 ⊊ 𝐴)) |
6 | nnord 7895 | . . . 4 ⊢ (𝐴 ∈ ω → Ord 𝐴) | |
7 | eloni 6396 | . . . 4 ⊢ (𝐵 ∈ On → Ord 𝐵) | |
8 | ordtri1 6419 | . . . . 5 ⊢ ((Ord 𝐴 ∧ Ord 𝐵) → (𝐴 ⊆ 𝐵 ↔ ¬ 𝐵 ∈ 𝐴)) | |
9 | ordelpss 6414 | . . . . . . 7 ⊢ ((Ord 𝐵 ∧ Ord 𝐴) → (𝐵 ∈ 𝐴 ↔ 𝐵 ⊊ 𝐴)) | |
10 | 9 | ancoms 458 | . . . . . 6 ⊢ ((Ord 𝐴 ∧ Ord 𝐵) → (𝐵 ∈ 𝐴 ↔ 𝐵 ⊊ 𝐴)) |
11 | 10 | notbid 318 | . . . . 5 ⊢ ((Ord 𝐴 ∧ Ord 𝐵) → (¬ 𝐵 ∈ 𝐴 ↔ ¬ 𝐵 ⊊ 𝐴)) |
12 | 8, 11 | bitrd 279 | . . . 4 ⊢ ((Ord 𝐴 ∧ Ord 𝐵) → (𝐴 ⊆ 𝐵 ↔ ¬ 𝐵 ⊊ 𝐴)) |
13 | 6, 7, 12 | syl2an 596 | . . 3 ⊢ ((𝐴 ∈ ω ∧ 𝐵 ∈ On) → (𝐴 ⊆ 𝐵 ↔ ¬ 𝐵 ⊊ 𝐴)) |
14 | 5, 13 | sylibrd 259 | . 2 ⊢ ((𝐴 ∈ ω ∧ 𝐵 ∈ On) → (𝐴 ≼ 𝐵 → 𝐴 ⊆ 𝐵)) |
15 | ssdomg 9039 | . . 3 ⊢ (𝐵 ∈ On → (𝐴 ⊆ 𝐵 → 𝐴 ≼ 𝐵)) | |
16 | 15 | adantl 481 | . 2 ⊢ ((𝐴 ∈ ω ∧ 𝐵 ∈ On) → (𝐴 ⊆ 𝐵 → 𝐴 ≼ 𝐵)) |
17 | 14, 16 | impbid 212 | 1 ⊢ ((𝐴 ∈ ω ∧ 𝐵 ∈ On) → (𝐴 ≼ 𝐵 ↔ 𝐴 ⊆ 𝐵)) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ↔ wb 206 ∧ wa 395 ∈ wcel 2106 ⊆ wss 3963 ⊊ wpss 3964 class class class wbr 5148 Ord word 6385 Oncon0 6386 ωcom 7887 ≼ cdom 8982 ≺ csdm 8983 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1908 ax-6 1965 ax-7 2005 ax-8 2108 ax-9 2116 ax-10 2139 ax-11 2155 ax-12 2175 ax-ext 2706 ax-sep 5302 ax-nul 5312 ax-pow 5371 ax-pr 5438 ax-un 7754 |
This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1540 df-fal 1550 df-ex 1777 df-nf 1781 df-sb 2063 df-mo 2538 df-eu 2567 df-clab 2713 df-cleq 2727 df-clel 2814 df-nfc 2890 df-ne 2939 df-ral 3060 df-rex 3069 df-reu 3379 df-rab 3434 df-v 3480 df-sbc 3792 df-csb 3909 df-dif 3966 df-un 3968 df-in 3970 df-ss 3980 df-pss 3983 df-nul 4340 df-if 4532 df-pw 4607 df-sn 4632 df-pr 4634 df-op 4638 df-uni 4913 df-br 5149 df-opab 5211 df-mpt 5232 df-tr 5266 df-id 5583 df-eprel 5589 df-po 5597 df-so 5598 df-fr 5641 df-we 5643 df-xp 5695 df-rel 5696 df-cnv 5697 df-co 5698 df-dm 5699 df-rn 5700 df-res 5701 df-ima 5702 df-ord 6389 df-on 6390 df-lim 6391 df-suc 6392 df-iota 6516 df-fun 6565 df-fn 6566 df-f 6567 df-f1 6568 df-fo 6569 df-f1o 6570 df-fv 6571 df-om 7888 df-1o 8505 df-er 8744 df-en 8985 df-dom 8986 df-sdom 8987 df-fin 8988 |
This theorem is referenced by: (None) |
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