ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  7p3e10 Unicode version

Theorem 7p3e10 9833
Description: 7 + 3 = 10. (Contributed by NM, 5-Feb-2007.) (Revised by Stanislas Polu, 7-Apr-2020.) (Revised by AV, 6-Sep-2021.)
Assertion
Ref Expression
7p3e10  |-  ( 7  +  3 )  = ; 1
0

Proof of Theorem 7p3e10
StepHypRef Expression
1 df-3 9346 . . . 4  |-  3  =  ( 2  +  1 )
21oveq2i 6089 . . 3  |-  ( 7  +  3 )  =  ( 7  +  ( 2  +  1 ) )
3 7cn 9370 . . . 4  |-  7  e.  CC
4 2cn 9357 . . . 4  |-  2  e.  CC
5 ax-1cn 8265 . . . 4  |-  1  e.  CC
63, 4, 5addassi 8327 . . 3  |-  ( ( 7  +  2 )  +  1 )  =  ( 7  +  ( 2  +  1 ) )
72, 6eqtr4i 2262 . 2  |-  ( 7  +  3 )  =  ( ( 7  +  2 )  +  1 )
8 7p2e9 9438 . . 3  |-  ( 7  +  2 )  =  9
98oveq1i 6088 . 2  |-  ( ( 7  +  2 )  +  1 )  =  ( 9  +  1 )
10 9p1e10 9761 . 2  |-  ( 9  +  1 )  = ; 1
0
117, 9, 103eqtri 2263 1  |-  ( 7  +  3 )  = ; 1
0
Colors of variables: wff set class
Syntax hints:    = wceq 1402  (class class class)co 6078   0cc0 8172   1c1 8173    + caddc 8175   2c2 9337   3c3 9338   7c7 9342   9c9 9344  ;cdc 9759
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 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-ext 2220  ax-sep 4247  ax-cnex 8263  ax-resscn 8264  ax-1cn 8265  ax-1re 8266  ax-icn 8267  ax-addcl 8268  ax-addrcl 8269  ax-mulcl 8270  ax-mulcom 8273  ax-addass 8274  ax-mulass 8275  ax-distr 8276  ax-1rid 8279  ax-0id 8280  ax-cnre 8283
This theorem depends on definitions:  df-bi 117  df-3an 1011  df-tru 1405  df-nf 1514  df-sb 1816  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ral 2533  df-rex 2534  df-rab 2537  df-v 2823  df-un 3224  df-in 3226  df-ss 3233  df-sn 3714  df-pr 3715  df-op 3717  df-uni 3934  df-int 3969  df-br 4129  df-iota 5335  df-fv 5383  df-ov 6081  df-inn 9287  df-2 9345  df-3 9346  df-4 9347  df-5 9348  df-6 9349  df-7 9350  df-8 9351  df-9 9352  df-dec 9760
This theorem is referenced by:  7p4e11  9834
  Copyright terms: Public domain W3C validator