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Mirrors > Home > MPE Home > Th. List > nndomogOLD | Structured version Visualization version GIF version |
Description: Obsolete version of nndomog 8973 as of 29-Nov-2024. (Contributed by NM, 17-Jun-1998.) Generalize from nndomo 8988. (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 8967 | . . . . . 6 ⊢ ((𝐴 ∈ ω ∧ 𝐵 ⊊ 𝐴) → 𝐵 ≺ 𝐴) | |
2 | 1 | ex 413 | . . . . 5 ⊢ (𝐴 ∈ ω → (𝐵 ⊊ 𝐴 → 𝐵 ≺ 𝐴)) |
3 | domnsym 8860 | . . . . 5 ⊢ (𝐴 ≼ 𝐵 → ¬ 𝐵 ≺ 𝐴) | |
4 | 2, 3 | nsyli 157 | . . . 4 ⊢ (𝐴 ∈ ω → (𝐴 ≼ 𝐵 → ¬ 𝐵 ⊊ 𝐴)) |
5 | 4 | adantr 481 | . . 3 ⊢ ((𝐴 ∈ ω ∧ 𝐵 ∈ On) → (𝐴 ≼ 𝐵 → ¬ 𝐵 ⊊ 𝐴)) |
6 | nnord 7709 | . . . 4 ⊢ (𝐴 ∈ ω → Ord 𝐴) | |
7 | eloni 6274 | . . . 4 ⊢ (𝐵 ∈ On → Ord 𝐵) | |
8 | ordtri1 6297 | . . . . 5 ⊢ ((Ord 𝐴 ∧ Ord 𝐵) → (𝐴 ⊆ 𝐵 ↔ ¬ 𝐵 ∈ 𝐴)) | |
9 | ordelpss 6292 | . . . . . . 7 ⊢ ((Ord 𝐵 ∧ Ord 𝐴) → (𝐵 ∈ 𝐴 ↔ 𝐵 ⊊ 𝐴)) | |
10 | 9 | ancoms 459 | . . . . . 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 278 | . . . 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 258 | . 2 ⊢ ((𝐴 ∈ ω ∧ 𝐵 ∈ On) → (𝐴 ≼ 𝐵 → 𝐴 ⊆ 𝐵)) |
15 | ssdomg 8761 | . . 3 ⊢ (𝐵 ∈ On → (𝐴 ⊆ 𝐵 → 𝐴 ≼ 𝐵)) | |
16 | 15 | adantl 482 | . 2 ⊢ ((𝐴 ∈ ω ∧ 𝐵 ∈ On) → (𝐴 ⊆ 𝐵 → 𝐴 ≼ 𝐵)) |
17 | 14, 16 | impbid 211 | 1 ⊢ ((𝐴 ∈ ω ∧ 𝐵 ∈ On) → (𝐴 ≼ 𝐵 ↔ 𝐴 ⊆ 𝐵)) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ↔ wb 205 ∧ wa 396 ∈ wcel 2110 ⊆ wss 3892 ⊊ wpss 3893 class class class wbr 5079 Ord word 6263 Oncon0 6264 ωcom 7701 ≼ cdom 8706 ≺ csdm 8707 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1975 ax-7 2015 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2158 ax-12 2175 ax-ext 2711 ax-sep 5227 ax-nul 5234 ax-pow 5292 ax-pr 5356 ax-un 7580 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1545 df-fal 1555 df-ex 1787 df-nf 1791 df-sb 2072 df-mo 2542 df-eu 2571 df-clab 2718 df-cleq 2732 df-clel 2818 df-nfc 2891 df-ne 2946 df-ral 3071 df-rex 3072 df-reu 3073 df-rab 3075 df-v 3433 df-sbc 3721 df-csb 3838 df-dif 3895 df-un 3897 df-in 3899 df-ss 3909 df-pss 3911 df-nul 4263 df-if 4466 df-pw 4541 df-sn 4568 df-pr 4570 df-tp 4572 df-op 4574 df-uni 4846 df-br 5080 df-opab 5142 df-mpt 5163 df-tr 5197 df-id 5489 df-eprel 5495 df-po 5503 df-so 5504 df-fr 5544 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-ord 6267 df-on 6268 df-lim 6269 df-suc 6270 df-iota 6389 df-fun 6433 df-fn 6434 df-f 6435 df-f1 6436 df-fo 6437 df-f1o 6438 df-fv 6439 df-om 7702 df-1o 8282 df-er 8473 df-en 8709 df-dom 8710 df-sdom 8711 df-fin 8712 |
This theorem is referenced by: (None) |
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