Theorem sucpw1nss3 7544

Description: Negated excluded middle implies that the successor of the power set of 1_o is not a subset of 3_o. (Contributed by James E. Hanson and Jim Kingdon, 31-Jul-2024.)

Assertion

Ref	Expression
sucpw1nss3	⊢ (¬ EXMID → ¬ suc 𝒫 1o ⊆ 3o)

Proof of Theorem sucpw1nss3

Step	Hyp	Ref	Expression
1		pw1nel3 7540	. 2 ⊢ (¬ EXMID → ¬ 𝒫 1o ∈ 3o)
2		pw1on 7535	. . 3 ⊢ 𝒫 1o ∈ On
3		sucssel 4544	. . 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 633	1 ⊢ (¬ EXMID → ¬ suc 𝒫 1o ⊆ 3o)

Syntax hints:  ¬ wn 3   → wi 4   ∈ wcel 2203   ⊆ wss 3210  𝒫 cpw 3668  EXMIDwem 4306  Oncon0 4483  suc csuc 4485  1_oc1o 6639  3_oc3o 6641

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 2205  ax-14 2206  ax-ext 2214  ax-sep 4227  ax-nul 4235  ax-pow 4286  ax-pr 4321  ax-un 4553  ax-setind 4658

This theorem depends on definitions:  df-bi 117  df-dc 843  df-3an 1007  df-tru 1401  df-nf 1510  df-sb 1812  df-clab 2219  df-cleq 2225  df-clel 2228  df-nfc 2373  df-ne 2413  df-ral 2525  df-rex 2526  df-v 2814  df-dif 3212  df-un 3214  df-in 3216  df-ss 3223  df-nul 3508  df-pw 3670  df-sn 3694  df-pr 3695  df-uni 3914  df-tr 4208  df-exmid 4307  df-iord 4486  df-on 4488  df-suc 4491  df-1o 6646  df-2o 6647  df-3o 6648

This theorem is referenced by:  onntri45  7550