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| Mirrors > Home > ILE Home > Th. List > sucpw1ne3 | GIF version | ||
| Description: Negated excluded middle implies that the successor of the power set of 1o is not three . (Contributed by James E. Hanson and Jim Kingdon, 30-Jul-2024.) |
| Ref | Expression |
|---|---|
| sucpw1ne3 | ⊢ (¬ EXMID → suc 𝒫 1o ≠ 3o) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | pw1nel3 7343 | . 2 ⊢ (¬ EXMID → ¬ 𝒫 1o ∈ 3o) | |
| 2 | 1oex 6510 | . . . . . 6 ⊢ 1o ∈ V | |
| 3 | 2 | pwex 4227 | . . . . 5 ⊢ 𝒫 1o ∈ V |
| 4 | 3 | sucid 4464 | . . . 4 ⊢ 𝒫 1o ∈ suc 𝒫 1o |
| 5 | eleq2 2269 | . . . 4 ⊢ (suc 𝒫 1o = 3o → (𝒫 1o ∈ suc 𝒫 1o ↔ 𝒫 1o ∈ 3o)) | |
| 6 | 4, 5 | mpbii 148 | . . 3 ⊢ (suc 𝒫 1o = 3o → 𝒫 1o ∈ 3o) |
| 7 | 6 | necon3bi 2426 | . 2 ⊢ (¬ 𝒫 1o ∈ 3o → suc 𝒫 1o ≠ 3o) |
| 8 | 1, 7 | syl 14 | 1 ⊢ (¬ EXMID → suc 𝒫 1o ≠ 3o) |
| Colors of variables: wff set class |
| Syntax hints: ¬ wn 3 → wi 4 = wceq 1373 ∈ wcel 2176 ≠ wne 2376 𝒫 cpw 3616 EXMIDwem 4238 suc csuc 4412 1oc1o 6495 3oc3o 6497 |
| 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 615 ax-in2 616 ax-io 711 ax-5 1470 ax-7 1471 ax-gen 1472 ax-ie1 1516 ax-ie2 1517 ax-8 1527 ax-10 1528 ax-11 1529 ax-i12 1530 ax-bndl 1532 ax-4 1533 ax-17 1549 ax-i9 1553 ax-ial 1557 ax-i5r 1558 ax-13 2178 ax-14 2179 ax-ext 2187 ax-sep 4162 ax-nul 4170 ax-pow 4218 ax-pr 4253 ax-un 4480 ax-setind 4585 |
| This theorem depends on definitions: df-bi 117 df-dc 837 df-3an 983 df-tru 1376 df-nf 1484 df-sb 1786 df-clab 2192 df-cleq 2198 df-clel 2201 df-nfc 2337 df-ne 2377 df-ral 2489 df-rex 2490 df-v 2774 df-dif 3168 df-un 3170 df-in 3172 df-ss 3179 df-nul 3461 df-pw 3618 df-sn 3639 df-pr 3640 df-uni 3851 df-tr 4143 df-exmid 4239 df-iord 4413 df-on 4415 df-suc 4418 df-1o 6502 df-2o 6503 df-3o 6504 |
| This theorem is referenced by: (None) |
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