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Mirrors > Home > MPE Home > Th. List > omsindsOLD | Structured version Visualization version GIF version |
Description: Obsolete version of omsinds 7733 as of 16-Oct-2024. (Contributed by Scott Fenton, 17-Jul-2015.) (Proof modification is discouraged.) (New usage is discouraged.) |
Ref | Expression |
---|---|
omsinds.1 | ⊢ (𝑥 = 𝑦 → (𝜑 ↔ 𝜓)) |
omsinds.2 | ⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜒)) |
omsinds.3 | ⊢ (𝑥 ∈ ω → (∀𝑦 ∈ 𝑥 𝜓 → 𝜑)) |
Ref | Expression |
---|---|
omsindsOLD | ⊢ (𝐴 ∈ ω → 𝜒) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | omsson 7716 | . . 3 ⊢ ω ⊆ On | |
2 | epweon 7625 | . . 3 ⊢ E We On | |
3 | wess 5576 | . . 3 ⊢ (ω ⊆ On → ( E We On → E We ω)) | |
4 | 1, 2, 3 | mp2 9 | . 2 ⊢ E We ω |
5 | epse 5572 | . 2 ⊢ E Se ω | |
6 | omsinds.1 | . 2 ⊢ (𝑥 = 𝑦 → (𝜑 ↔ 𝜓)) | |
7 | omsinds.2 | . 2 ⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜒)) | |
8 | predep 6233 | . . . . 5 ⊢ (𝑥 ∈ ω → Pred( E , ω, 𝑥) = (ω ∩ 𝑥)) | |
9 | ordom 7722 | . . . . . . 7 ⊢ Ord ω | |
10 | ordtr 6280 | . . . . . . 7 ⊢ (Ord ω → Tr ω) | |
11 | trss 5200 | . . . . . . 7 ⊢ (Tr ω → (𝑥 ∈ ω → 𝑥 ⊆ ω)) | |
12 | 9, 10, 11 | mp2b 10 | . . . . . 6 ⊢ (𝑥 ∈ ω → 𝑥 ⊆ ω) |
13 | sseqin2 4149 | . . . . . 6 ⊢ (𝑥 ⊆ ω ↔ (ω ∩ 𝑥) = 𝑥) | |
14 | 12, 13 | sylib 217 | . . . . 5 ⊢ (𝑥 ∈ ω → (ω ∩ 𝑥) = 𝑥) |
15 | 8, 14 | eqtrd 2778 | . . . 4 ⊢ (𝑥 ∈ ω → Pred( E , ω, 𝑥) = 𝑥) |
16 | 15 | raleqdv 3348 | . . 3 ⊢ (𝑥 ∈ ω → (∀𝑦 ∈ Pred ( E , ω, 𝑥)𝜓 ↔ ∀𝑦 ∈ 𝑥 𝜓)) |
17 | omsinds.3 | . . 3 ⊢ (𝑥 ∈ ω → (∀𝑦 ∈ 𝑥 𝜓 → 𝜑)) | |
18 | 16, 17 | sylbid 239 | . 2 ⊢ (𝑥 ∈ ω → (∀𝑦 ∈ Pred ( E , ω, 𝑥)𝜓 → 𝜑)) |
19 | 4, 5, 6, 7, 18 | wfis3 6264 | 1 ⊢ (𝐴 ∈ ω → 𝜒) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 = wceq 1539 ∈ wcel 2106 ∀wral 3064 ∩ cin 3886 ⊆ wss 3887 Tr wtr 5191 E cep 5494 We wwe 5543 Predcpred 6201 Ord word 6265 Oncon0 6266 ωcom 7712 |
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-sep 5223 ax-nul 5230 ax-pr 5352 |
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-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-ral 3069 df-rex 3070 df-rab 3073 df-v 3434 df-sbc 3717 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-br 5075 df-opab 5137 df-tr 5192 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-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-pred 6202 df-ord 6269 df-on 6270 df-lim 6271 df-om 7713 |
This theorem is referenced by: (None) |
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