ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  sucpw1nss3 Unicode version

Theorem sucpw1nss3 7545
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.)
Assertion
Ref Expression
sucpw1nss3  |-  ( -. EXMID  ->  -.  suc  ~P 1o  C_  3o )

Proof of Theorem sucpw1nss3
StepHypRef Expression
1 pw1nel3 7541 . 2  |-  ( -. EXMID  ->  -.  ~P 1o  e.  3o )
2 pw1on 7536 . . 3  |-  ~P 1o  e.  On
3 sucssel 4545 . . 3  |-  ( ~P 1o  e.  On  ->  ( suc  ~P 1o  C_  3o  ->  ~P 1o  e.  3o ) )
42, 3ax-mp 5 . 2  |-  ( suc 
~P 1o  C_  3o  ->  ~P 1o  e.  3o )
51, 4nsyl 633 1  |-  ( -. EXMID  ->  -.  suc  ~P 1o  C_  3o )
Colors of variables: wff set class
Syntax hints:   -. wn 3    -> wi 4    e. wcel 2203    C_ wss 3211   ~Pcpw 3669  EXMIDwem 4307   Oncon0 4484   suc csuc 4486   1oc1o 6640   3oc3o 6642
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 4228  ax-nul 4236  ax-pow 4287  ax-pr 4322  ax-un 4554  ax-setind 4659
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 2815  df-dif 3213  df-un 3215  df-in 3217  df-ss 3224  df-nul 3509  df-pw 3671  df-sn 3695  df-pr 3696  df-uni 3915  df-tr 4209  df-exmid 4308  df-iord 4487  df-on 4489  df-suc 4492  df-1o 6647  df-2o 6648  df-3o 6649
This theorem is referenced by:  onntri45  7551
  Copyright terms: Public domain W3C validator