ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  2onetap Unicode version

Theorem 2onetap 7474
Description: Negated equality is a tight apartness on  2o. (Contributed by Jim Kingdon, 6-Feb-2025.)
Assertion
Ref Expression
2onetap  |-  { <. u ,  v >.  |  ( ( u  e.  2o  /\  v  e.  2o )  /\  u  =/=  v
) } TAp  2o
Distinct variable group:    v, u

Proof of Theorem 2onetap
Dummy variables  x  y are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 2onn 6689 . . . . 5  |-  2o  e.  om
2 elnn 4704 . . . . 5  |-  ( ( x  e.  2o  /\  2o  e.  om )  ->  x  e.  om )
31, 2mpan2 425 . . . 4  |-  ( x  e.  2o  ->  x  e.  om )
4 elnn 4704 . . . . 5  |-  ( ( y  e.  2o  /\  2o  e.  om )  -> 
y  e.  om )
51, 4mpan2 425 . . . 4  |-  ( y  e.  2o  ->  y  e.  om )
6 nndceq 6667 . . . 4  |-  ( ( x  e.  om  /\  y  e.  om )  -> DECID  x  =  y )
73, 5, 6syl2an 289 . . 3  |-  ( ( x  e.  2o  /\  y  e.  2o )  -> DECID  x  =  y )
87rgen2 2618 . 2  |-  A. x  e.  2o  A. y  e.  2o DECID  x  =  y
9 netap 7473 . 2  |-  ( A. x  e.  2o  A. y  e.  2o DECID  x  =  y  ->  { <. u ,  v
>.  |  ( (
u  e.  2o  /\  v  e.  2o )  /\  u  =/=  v
) } TAp  2o )
108, 9ax-mp 5 1  |-  { <. u ,  v >.  |  ( ( u  e.  2o  /\  v  e.  2o )  /\  u  =/=  v
) } TAp  2o
Colors of variables: wff set class
Syntax hints:    /\ wa 104  DECID wdc 841    e. wcel 2202    =/= wne 2402   A.wral 2510   {copab 4149   omcom 4688   2oc2o 6576   TAp wtap 7468
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 716  ax-5 1495  ax-7 1496  ax-gen 1497  ax-ie1 1541  ax-ie2 1542  ax-8 1552  ax-10 1553  ax-11 1554  ax-i12 1555  ax-bndl 1557  ax-4 1558  ax-17 1574  ax-i9 1578  ax-ial 1582  ax-i5r 1583  ax-13 2204  ax-14 2205  ax-ext 2213  ax-sep 4207  ax-nul 4215  ax-pow 4264  ax-pr 4299  ax-un 4530  ax-setind 4635  ax-iinf 4686
This theorem depends on definitions:  df-bi 117  df-dc 842  df-3or 1005  df-3an 1006  df-tru 1400  df-nf 1509  df-sb 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2363  df-ne 2403  df-ral 2515  df-rex 2516  df-v 2804  df-dif 3202  df-un 3204  df-in 3206  df-ss 3213  df-nul 3495  df-pw 3654  df-sn 3675  df-pr 3676  df-op 3678  df-uni 3894  df-int 3929  df-br 4089  df-opab 4151  df-tr 4188  df-iord 4463  df-on 4465  df-suc 4468  df-iom 4689  df-xp 4731  df-1o 6582  df-2o 6583  df-pap 7467  df-tap 7469
This theorem is referenced by:  2omotaplemst  7477
  Copyright terms: Public domain W3C validator