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Mirrors > Home > MPE Home > Th. List > zorn2lem2 | Structured version Visualization version GIF version |
Description: Lemma for zorn2 10262. (Contributed by NM, 3-Apr-1997.) (Revised by Mario Carneiro, 9-May-2015.) |
Ref | Expression |
---|---|
zorn2lem.3 | ⊢ 𝐹 = recs((𝑓 ∈ V ↦ (℩𝑣 ∈ 𝐶 ∀𝑢 ∈ 𝐶 ¬ 𝑢𝑤𝑣))) |
zorn2lem.4 | ⊢ 𝐶 = {𝑧 ∈ 𝐴 ∣ ∀𝑔 ∈ ran 𝑓 𝑔𝑅𝑧} |
zorn2lem.5 | ⊢ 𝐷 = {𝑧 ∈ 𝐴 ∣ ∀𝑔 ∈ (𝐹 “ 𝑥)𝑔𝑅𝑧} |
Ref | Expression |
---|---|
zorn2lem2 | ⊢ ((𝑥 ∈ On ∧ (𝑤 We 𝐴 ∧ 𝐷 ≠ ∅)) → (𝑦 ∈ 𝑥 → (𝐹‘𝑦)𝑅(𝐹‘𝑥))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | zorn2lem.3 | . . . 4 ⊢ 𝐹 = recs((𝑓 ∈ V ↦ (℩𝑣 ∈ 𝐶 ∀𝑢 ∈ 𝐶 ¬ 𝑢𝑤𝑣))) | |
2 | zorn2lem.4 | . . . 4 ⊢ 𝐶 = {𝑧 ∈ 𝐴 ∣ ∀𝑔 ∈ ran 𝑓 𝑔𝑅𝑧} | |
3 | zorn2lem.5 | . . . 4 ⊢ 𝐷 = {𝑧 ∈ 𝐴 ∣ ∀𝑔 ∈ (𝐹 “ 𝑥)𝑔𝑅𝑧} | |
4 | 1, 2, 3 | zorn2lem1 10252 | . . 3 ⊢ ((𝑥 ∈ On ∧ (𝑤 We 𝐴 ∧ 𝐷 ≠ ∅)) → (𝐹‘𝑥) ∈ 𝐷) |
5 | breq2 5078 | . . . . . 6 ⊢ (𝑧 = (𝐹‘𝑥) → (𝑔𝑅𝑧 ↔ 𝑔𝑅(𝐹‘𝑥))) | |
6 | 5 | ralbidv 3112 | . . . . 5 ⊢ (𝑧 = (𝐹‘𝑥) → (∀𝑔 ∈ (𝐹 “ 𝑥)𝑔𝑅𝑧 ↔ ∀𝑔 ∈ (𝐹 “ 𝑥)𝑔𝑅(𝐹‘𝑥))) |
7 | 6, 3 | elrab2 3627 | . . . 4 ⊢ ((𝐹‘𝑥) ∈ 𝐷 ↔ ((𝐹‘𝑥) ∈ 𝐴 ∧ ∀𝑔 ∈ (𝐹 “ 𝑥)𝑔𝑅(𝐹‘𝑥))) |
8 | 7 | simprbi 497 | . . 3 ⊢ ((𝐹‘𝑥) ∈ 𝐷 → ∀𝑔 ∈ (𝐹 “ 𝑥)𝑔𝑅(𝐹‘𝑥)) |
9 | 4, 8 | syl 17 | . 2 ⊢ ((𝑥 ∈ On ∧ (𝑤 We 𝐴 ∧ 𝐷 ≠ ∅)) → ∀𝑔 ∈ (𝐹 “ 𝑥)𝑔𝑅(𝐹‘𝑥)) |
10 | 1 | tfr1 8228 | . . . 4 ⊢ 𝐹 Fn On |
11 | onss 7634 | . . . 4 ⊢ (𝑥 ∈ On → 𝑥 ⊆ On) | |
12 | fnfvima 7109 | . . . . 5 ⊢ ((𝐹 Fn On ∧ 𝑥 ⊆ On ∧ 𝑦 ∈ 𝑥) → (𝐹‘𝑦) ∈ (𝐹 “ 𝑥)) | |
13 | 12 | 3expia 1120 | . . . 4 ⊢ ((𝐹 Fn On ∧ 𝑥 ⊆ On) → (𝑦 ∈ 𝑥 → (𝐹‘𝑦) ∈ (𝐹 “ 𝑥))) |
14 | 10, 11, 13 | sylancr 587 | . . 3 ⊢ (𝑥 ∈ On → (𝑦 ∈ 𝑥 → (𝐹‘𝑦) ∈ (𝐹 “ 𝑥))) |
15 | 14 | adantr 481 | . 2 ⊢ ((𝑥 ∈ On ∧ (𝑤 We 𝐴 ∧ 𝐷 ≠ ∅)) → (𝑦 ∈ 𝑥 → (𝐹‘𝑦) ∈ (𝐹 “ 𝑥))) |
16 | breq1 5077 | . . 3 ⊢ (𝑔 = (𝐹‘𝑦) → (𝑔𝑅(𝐹‘𝑥) ↔ (𝐹‘𝑦)𝑅(𝐹‘𝑥))) | |
17 | 16 | rspccv 3558 | . 2 ⊢ (∀𝑔 ∈ (𝐹 “ 𝑥)𝑔𝑅(𝐹‘𝑥) → ((𝐹‘𝑦) ∈ (𝐹 “ 𝑥) → (𝐹‘𝑦)𝑅(𝐹‘𝑥))) |
18 | 9, 15, 17 | sylsyld 61 | 1 ⊢ ((𝑥 ∈ On ∧ (𝑤 We 𝐴 ∧ 𝐷 ≠ ∅)) → (𝑦 ∈ 𝑥 → (𝐹‘𝑦)𝑅(𝐹‘𝑥))) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ∧ wa 396 = wceq 1539 ∈ wcel 2106 ≠ wne 2943 ∀wral 3064 {crab 3068 Vcvv 3432 ⊆ wss 3887 ∅c0 4256 class class class wbr 5074 ↦ cmpt 5157 We wwe 5543 ran crn 5590 “ cima 5592 Oncon0 6266 Fn wfn 6428 ‘cfv 6433 ℩crio 7231 recscrecs 8201 |
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-pr 5352 ax-un 7588 |
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-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-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-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-riota 7232 df-ov 7278 df-2nd 7832 df-frecs 8097 df-wrecs 8128 df-recs 8202 |
This theorem is referenced by: zorn2lem3 10254 zorn2lem6 10257 |
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