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Mirrors > Home > MPE Home > Th. List > zorn2lem2 | Structured version Visualization version GIF version |
Description: Lemma for zorn2 10503. (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 10493 | . . 3 ⊢ ((𝑥 ∈ On ∧ (𝑤 We 𝐴 ∧ 𝐷 ≠ ∅)) → (𝐹‘𝑥) ∈ 𝐷) |
5 | breq2 5152 | . . . . . 6 ⊢ (𝑧 = (𝐹‘𝑥) → (𝑔𝑅𝑧 ↔ 𝑔𝑅(𝐹‘𝑥))) | |
6 | 5 | ralbidv 3177 | . . . . 5 ⊢ (𝑧 = (𝐹‘𝑥) → (∀𝑔 ∈ (𝐹 “ 𝑥)𝑔𝑅𝑧 ↔ ∀𝑔 ∈ (𝐹 “ 𝑥)𝑔𝑅(𝐹‘𝑥))) |
7 | 6, 3 | elrab2 3686 | . . . 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 8399 | . . . 4 ⊢ 𝐹 Fn On |
11 | onss 7774 | . . . 4 ⊢ (𝑥 ∈ On → 𝑥 ⊆ On) | |
12 | fnfvima 7237 | . . . . 5 ⊢ ((𝐹 Fn On ∧ 𝑥 ⊆ On ∧ 𝑦 ∈ 𝑥) → (𝐹‘𝑦) ∈ (𝐹 “ 𝑥)) | |
13 | 12 | 3expia 1121 | . . . 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 5151 | . . 3 ⊢ (𝑔 = (𝐹‘𝑦) → (𝑔𝑅(𝐹‘𝑥) ↔ (𝐹‘𝑦)𝑅(𝐹‘𝑥))) | |
17 | 16 | rspccv 3609 | . 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 1541 ∈ wcel 2106 ≠ wne 2940 ∀wral 3061 {crab 3432 Vcvv 3474 ⊆ wss 3948 ∅c0 4322 class class class wbr 5148 ↦ cmpt 5231 We wwe 5630 ran crn 5677 “ cima 5679 Oncon0 6364 Fn wfn 6538 ‘cfv 6543 ℩crio 7366 recscrecs 8372 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 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 2703 ax-rep 5285 ax-sep 5299 ax-nul 5306 ax-pr 5427 ax-un 7727 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2534 df-eu 2563 df-clab 2710 df-cleq 2724 df-clel 2810 df-nfc 2885 df-ne 2941 df-ral 3062 df-rex 3071 df-rmo 3376 df-reu 3377 df-rab 3433 df-v 3476 df-sbc 3778 df-csb 3894 df-dif 3951 df-un 3953 df-in 3955 df-ss 3965 df-pss 3967 df-nul 4323 df-if 4529 df-pw 4604 df-sn 4629 df-pr 4631 df-op 4635 df-uni 4909 df-iun 4999 df-br 5149 df-opab 5211 df-mpt 5232 df-tr 5266 df-id 5574 df-eprel 5580 df-po 5588 df-so 5589 df-fr 5631 df-we 5633 df-xp 5682 df-rel 5683 df-cnv 5684 df-co 5685 df-dm 5686 df-rn 5687 df-res 5688 df-ima 5689 df-pred 6300 df-ord 6367 df-on 6368 df-suc 6370 df-iota 6495 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-riota 7367 df-ov 7414 df-2nd 7978 df-frecs 8268 df-wrecs 8299 df-recs 8373 |
This theorem is referenced by: zorn2lem3 10495 zorn2lem6 10498 |
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