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Mirrors > Home > ILE Home > Th. List > sucpw1nss3 | GIF version |
Description: Negated excluded middle implies that the successor of the power set of 1o is not a subset of 3o. (Contributed by James E. Hanson and Jim Kingdon, 31-Jul-2024.) |
Ref | Expression |
---|---|
sucpw1nss3 | ⊢ (¬ EXMID → ¬ suc 𝒫 1o ⊆ 3o) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | pw1nel3 7187 | . 2 ⊢ (¬ EXMID → ¬ 𝒫 1o ∈ 3o) | |
2 | pw1on 7182 | . . 3 ⊢ 𝒫 1o ∈ On | |
3 | sucssel 4402 | . . 3 ⊢ (𝒫 1o ∈ On → (suc 𝒫 1o ⊆ 3o → 𝒫 1o ∈ 3o)) | |
4 | 2, 3 | ax-mp 5 | . 2 ⊢ (suc 𝒫 1o ⊆ 3o → 𝒫 1o ∈ 3o) |
5 | 1, 4 | nsyl 618 | 1 ⊢ (¬ EXMID → ¬ suc 𝒫 1o ⊆ 3o) |
Colors of variables: wff set class |
Syntax hints: ¬ wn 3 → wi 4 ∈ wcel 2136 ⊆ wss 3116 𝒫 cpw 3559 EXMIDwem 4173 Oncon0 4341 suc csuc 4343 1oc1o 6377 3oc3o 6379 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 604 ax-in2 605 ax-io 699 ax-5 1435 ax-7 1436 ax-gen 1437 ax-ie1 1481 ax-ie2 1482 ax-8 1492 ax-10 1493 ax-11 1494 ax-i12 1495 ax-bndl 1497 ax-4 1498 ax-17 1514 ax-i9 1518 ax-ial 1522 ax-i5r 1523 ax-13 2138 ax-14 2139 ax-ext 2147 ax-sep 4100 ax-nul 4108 ax-pow 4153 ax-pr 4187 ax-un 4411 ax-setind 4514 |
This theorem depends on definitions: df-bi 116 df-dc 825 df-3an 970 df-tru 1346 df-nf 1449 df-sb 1751 df-clab 2152 df-cleq 2158 df-clel 2161 df-nfc 2297 df-ne 2337 df-ral 2449 df-rex 2450 df-v 2728 df-dif 3118 df-un 3120 df-in 3122 df-ss 3129 df-nul 3410 df-pw 3561 df-sn 3582 df-pr 3583 df-uni 3790 df-tr 4081 df-exmid 4174 df-iord 4344 df-on 4346 df-suc 4349 df-1o 6384 df-2o 6385 df-3o 6386 |
This theorem is referenced by: onntri45 7197 |
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