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| Mirrors > Home > ILE Home > Th. List > iswomnimap | GIF version | ||
| Description: The predicate of being weakly omniscient stated in terms of set exponentiation. (Contributed by Jim Kingdon, 9-Jun-2024.) |
| Ref | Expression |
|---|---|
| iswomnimap | ⊢ (𝐴 ∈ 𝑉 → (𝐴 ∈ WOmni ↔ ∀𝑓 ∈ (2o ↑𝑚 𝐴)DECID ∀𝑥 ∈ 𝐴 (𝑓‘𝑥) = 1o)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | iswomni 7407 | . . 3 ⊢ (𝐴 ∈ 𝑉 → (𝐴 ∈ WOmni ↔ ∀𝑓(𝑓:𝐴⟶2o → DECID ∀𝑥 ∈ 𝐴 (𝑓‘𝑥) = 1o))) | |
| 2 | 2onn 6732 | . . . . . 6 ⊢ 2o ∈ ω | |
| 3 | elmapg 6873 | . . . . . 6 ⊢ ((2o ∈ ω ∧ 𝐴 ∈ 𝑉) → (𝑓 ∈ (2o ↑𝑚 𝐴) ↔ 𝑓:𝐴⟶2o)) | |
| 4 | 2, 3 | mpan 424 | . . . . 5 ⊢ (𝐴 ∈ 𝑉 → (𝑓 ∈ (2o ↑𝑚 𝐴) ↔ 𝑓:𝐴⟶2o)) |
| 5 | 4 | imbi1d 231 | . . . 4 ⊢ (𝐴 ∈ 𝑉 → ((𝑓 ∈ (2o ↑𝑚 𝐴) → DECID ∀𝑥 ∈ 𝐴 (𝑓‘𝑥) = 1o) ↔ (𝑓:𝐴⟶2o → DECID ∀𝑥 ∈ 𝐴 (𝑓‘𝑥) = 1o))) |
| 6 | 5 | albidv 1872 | . . 3 ⊢ (𝐴 ∈ 𝑉 → (∀𝑓(𝑓 ∈ (2o ↑𝑚 𝐴) → DECID ∀𝑥 ∈ 𝐴 (𝑓‘𝑥) = 1o) ↔ ∀𝑓(𝑓:𝐴⟶2o → DECID ∀𝑥 ∈ 𝐴 (𝑓‘𝑥) = 1o))) |
| 7 | 1, 6 | bitr4d 191 | . 2 ⊢ (𝐴 ∈ 𝑉 → (𝐴 ∈ WOmni ↔ ∀𝑓(𝑓 ∈ (2o ↑𝑚 𝐴) → DECID ∀𝑥 ∈ 𝐴 (𝑓‘𝑥) = 1o))) |
| 8 | df-ral 2516 | . 2 ⊢ (∀𝑓 ∈ (2o ↑𝑚 𝐴)DECID ∀𝑥 ∈ 𝐴 (𝑓‘𝑥) = 1o ↔ ∀𝑓(𝑓 ∈ (2o ↑𝑚 𝐴) → DECID ∀𝑥 ∈ 𝐴 (𝑓‘𝑥) = 1o)) | |
| 9 | 7, 8 | bitr4di 198 | 1 ⊢ (𝐴 ∈ 𝑉 → (𝐴 ∈ WOmni ↔ ∀𝑓 ∈ (2o ↑𝑚 𝐴)DECID ∀𝑥 ∈ 𝐴 (𝑓‘𝑥) = 1o)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ↔ wb 105 DECID wdc 842 ∀wal 1396 = wceq 1398 ∈ wcel 2202 ∀wral 2511 ωcom 4694 ⟶wf 5329 ‘cfv 5333 (class class class)co 6028 1oc1o 6618 2oc2o 6619 ↑𝑚 cmap 6860 WOmnicwomni 7405 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 619 ax-in2 620 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2204 ax-14 2205 ax-ext 2213 ax-sep 4212 ax-nul 4220 ax-pow 4270 ax-pr 4305 ax-un 4536 ax-setind 4641 |
| This theorem depends on definitions: df-bi 117 df-dc 843 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-ne 2404 df-ral 2516 df-rex 2517 df-v 2805 df-sbc 3033 df-dif 3203 df-un 3205 df-in 3207 df-ss 3214 df-nul 3497 df-pw 3658 df-sn 3679 df-pr 3680 df-op 3682 df-uni 3899 df-int 3934 df-br 4094 df-opab 4156 df-id 4396 df-suc 4474 df-iom 4695 df-xp 4737 df-rel 4738 df-cnv 4739 df-co 4740 df-dm 4741 df-rn 4742 df-iota 5293 df-fun 5335 df-fn 5336 df-f 5337 df-fv 5341 df-ov 6031 df-oprab 6032 df-mpo 6033 df-1o 6625 df-2o 6626 df-map 6862 df-womni 7406 |
| This theorem is referenced by: enwomnilem 7411 nninfdcinf 7413 nninfwlporlem 7415 nninfwlpoim 7421 nninfinfwlpo 7422 iswomninnlem 16765 |
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