ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  3p3e6 Unicode version

Theorem 3p3e6 9285
Description: 3 + 3 = 6. (Contributed by NM, 11-May-2004.)
Assertion
Ref Expression
3p3e6  |-  ( 3  +  3 )  =  6

Proof of Theorem 3p3e6
StepHypRef Expression
1 df-3 9202 . . . 4  |-  3  =  ( 2  +  1 )
21oveq2i 6028 . . 3  |-  ( 3  +  3 )  =  ( 3  +  ( 2  +  1 ) )
3 3cn 9217 . . . 4  |-  3  e.  CC
4 2cn 9213 . . . 4  |-  2  e.  CC
5 ax-1cn 8124 . . . 4  |-  1  e.  CC
63, 4, 5addassi 8186 . . 3  |-  ( ( 3  +  2 )  +  1 )  =  ( 3  +  ( 2  +  1 ) )
72, 6eqtr4i 2255 . 2  |-  ( 3  +  3 )  =  ( ( 3  +  2 )  +  1 )
8 df-6 9205 . . 3  |-  6  =  ( 5  +  1 )
9 3p2e5 9284 . . . 4  |-  ( 3  +  2 )  =  5
109oveq1i 6027 . . 3  |-  ( ( 3  +  2 )  +  1 )  =  ( 5  +  1 )
118, 10eqtr4i 2255 . 2  |-  6  =  ( ( 3  +  2 )  +  1 )
127, 11eqtr4i 2255 1  |-  ( 3  +  3 )  =  6
Colors of variables: wff set class
Syntax hints:    = wceq 1397  (class class class)co 6017   1c1 8032    + caddc 8034   2c2 9193   3c3 9194   5c5 9196   6c6 9197
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-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-ext 2213  ax-resscn 8123  ax-1cn 8124  ax-1re 8125  ax-addrcl 8128  ax-addass 8133
This theorem depends on definitions:  df-bi 117  df-3an 1006  df-tru 1400  df-nf 1509  df-sb 1811  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2363  df-rex 2516  df-v 2804  df-un 3204  df-in 3206  df-ss 3213  df-sn 3675  df-pr 3676  df-op 3678  df-uni 3894  df-br 4089  df-iota 5286  df-fv 5334  df-ov 6020  df-2 9201  df-3 9202  df-4 9203  df-5 9204  df-6 9205
This theorem is referenced by:  3t2e6  9299  binom4  15702  ex-dvds  16326  ex-gcd  16327
  Copyright terms: Public domain W3C validator