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Theorem sucpw1ne3 7209
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.)
Assertion
Ref Expression
sucpw1ne3 EXMID → suc 𝒫 1o ≠ 3o)

Proof of Theorem sucpw1ne3
StepHypRef Expression
1 pw1nel3 7208 . 2 EXMID → ¬ 𝒫 1o ∈ 3o)
2 1oex 6403 . . . . . 6 1o ∈ V
32pwex 4169 . . . . 5 𝒫 1o ∈ V
43sucid 4402 . . . 4 𝒫 1o ∈ suc 𝒫 1o
5 eleq2 2234 . . . 4 (suc 𝒫 1o = 3o → (𝒫 1o ∈ suc 𝒫 1o ↔ 𝒫 1o ∈ 3o))
64, 5mpbii 147 . . 3 (suc 𝒫 1o = 3o → 𝒫 1o ∈ 3o)
76necon3bi 2390 . 2 (¬ 𝒫 1o ∈ 3o → suc 𝒫 1o ≠ 3o)
81, 7syl 14 1 EXMID → suc 𝒫 1o ≠ 3o)
Colors of variables: wff set class
Syntax hints:  ¬ wn 3  wi 4   = wceq 1348  wcel 2141  wne 2340  𝒫 cpw 3566  EXMIDwem 4180  suc csuc 4350  1oc1o 6388  3oc3o 6390
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 609  ax-in2 610  ax-io 704  ax-5 1440  ax-7 1441  ax-gen 1442  ax-ie1 1486  ax-ie2 1487  ax-8 1497  ax-10 1498  ax-11 1499  ax-i12 1500  ax-bndl 1502  ax-4 1503  ax-17 1519  ax-i9 1523  ax-ial 1527  ax-i5r 1528  ax-13 2143  ax-14 2144  ax-ext 2152  ax-sep 4107  ax-nul 4115  ax-pow 4160  ax-pr 4194  ax-un 4418  ax-setind 4521
This theorem depends on definitions:  df-bi 116  df-dc 830  df-3an 975  df-tru 1351  df-nf 1454  df-sb 1756  df-clab 2157  df-cleq 2163  df-clel 2166  df-nfc 2301  df-ne 2341  df-ral 2453  df-rex 2454  df-v 2732  df-dif 3123  df-un 3125  df-in 3127  df-ss 3134  df-nul 3415  df-pw 3568  df-sn 3589  df-pr 3590  df-uni 3797  df-tr 4088  df-exmid 4181  df-iord 4351  df-on 4353  df-suc 4356  df-1o 6395  df-2o 6396  df-3o 6397
This theorem is referenced by: (None)
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