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Theorem pw1ne3 7376
Description: The power set of  1o is not three. (Contributed by James E. Hanson and Jim Kingdon, 30-Jul-2024.)
Assertion
Ref Expression
pw1ne3  |-  ~P 1o  =/=  3o

Proof of Theorem pw1ne3
StepHypRef Expression
1 1lt2o 6551 . . . . 5  |-  1o  e.  2o
2 ssnel 4635 . . . . 5  |-  ( 2o  C_  1o  ->  -.  1o  e.  2o )
31, 2mt2 641 . . . 4  |-  -.  2o  C_  1o
4 2onn 6630 . . . . . 6  |-  2o  e.  om
54elexi 2789 . . . . 5  |-  2o  e.  _V
65elpw 3632 . . . 4  |-  ( 2o  e.  ~P 1o  <->  2o  C_  1o )
73, 6mtbir 673 . . 3  |-  -.  2o  e.  ~P 1o
85sucid 4482 . . . . 5  |-  2o  e.  suc  2o
9 df-3o 6527 . . . . 5  |-  3o  =  suc  2o
108, 9eleqtrri 2283 . . . 4  |-  2o  e.  3o
11 eleq2 2271 . . . 4  |-  ( ~P 1o  =  3o  ->  ( 2o  e.  ~P 1o  <->  2o  e.  3o ) )
1210, 11mpbiri 168 . . 3  |-  ( ~P 1o  =  3o  ->  2o  e.  ~P 1o )
137, 12mto 664 . 2  |-  -.  ~P 1o  =  3o
1413neir 2381 1  |-  ~P 1o  =/=  3o
Colors of variables: wff set class
Syntax hints:    = wceq 1373    e. wcel 2178    =/= wne 2378    C_ wss 3174   ~Pcpw 3626   suc csuc 4430   omcom 4656   1oc1o 6518   2oc2o 6519   3oc3o 6520
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 1471  ax-7 1472  ax-gen 1473  ax-ie1 1517  ax-ie2 1518  ax-8 1528  ax-10 1529  ax-11 1530  ax-i12 1531  ax-bndl 1533  ax-4 1534  ax-17 1550  ax-i9 1554  ax-ial 1558  ax-i5r 1559  ax-13 2180  ax-14 2181  ax-ext 2189  ax-sep 4178  ax-nul 4186  ax-pow 4234  ax-pr 4269  ax-un 4498  ax-setind 4603
This theorem depends on definitions:  df-bi 117  df-3an 983  df-tru 1376  df-nf 1485  df-sb 1787  df-clab 2194  df-cleq 2200  df-clel 2203  df-nfc 2339  df-ne 2379  df-ral 2491  df-rex 2492  df-v 2778  df-dif 3176  df-un 3178  df-in 3180  df-ss 3187  df-nul 3469  df-pw 3628  df-sn 3649  df-pr 3650  df-uni 3865  df-int 3900  df-tr 4159  df-iord 4431  df-on 4433  df-suc 4436  df-iom 4657  df-1o 6525  df-2o 6526  df-3o 6527
This theorem is referenced by:  3nelsucpw1  7380
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