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Theorem 5p5e10 9779
Description: 5 + 5 = 10. (Contributed by NM, 5-Feb-2007.) (Revised by Stanislas Polu, 7-Apr-2020.) (Revised by AV, 6-Sep-2021.)
Assertion
Ref Expression
5p5e10  |-  ( 5  +  5 )  = ; 1
0

Proof of Theorem 5p5e10
StepHypRef Expression
1 df-5 9299 . . . 4  |-  5  =  ( 4  +  1 )
21oveq2i 6061 . . 3  |-  ( 5  +  5 )  =  ( 5  +  ( 4  +  1 ) )
3 5cn 9317 . . . 4  |-  5  e.  CC
4 4cn 9315 . . . 4  |-  4  e.  CC
5 ax-1cn 8220 . . . 4  |-  1  e.  CC
63, 4, 5addassi 8282 . . 3  |-  ( ( 5  +  4 )  +  1 )  =  ( 5  +  ( 4  +  1 ) )
72, 6eqtr4i 2256 . 2  |-  ( 5  +  5 )  =  ( ( 5  +  4 )  +  1 )
8 5p4e9 9386 . . 3  |-  ( 5  +  4 )  =  9
98oveq1i 6060 . 2  |-  ( ( 5  +  4 )  +  1 )  =  ( 9  +  1 )
10 9p1e10 9711 . 2  |-  ( 9  +  1 )  = ; 1
0
117, 9, 103eqtri 2257 1  |-  ( 5  +  5 )  = ; 1
0
Colors of variables: wff set class
Syntax hints:    = wceq 1398  (class class class)co 6050   0cc0 8127   1c1 8128    + caddc 8130   4c4 9290   5c5 9291   9c9 9295  ;cdc 9709
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 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-ext 2214  ax-sep 4228  ax-cnex 8218  ax-resscn 8219  ax-1cn 8220  ax-1re 8221  ax-icn 8222  ax-addcl 8223  ax-addrcl 8224  ax-mulcl 8225  ax-mulcom 8228  ax-addass 8229  ax-mulass 8230  ax-distr 8231  ax-1rid 8234  ax-0id 8235  ax-cnre 8238
This theorem depends on definitions:  df-bi 117  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-ral 2525  df-rex 2526  df-rab 2529  df-v 2815  df-un 3215  df-in 3217  df-ss 3224  df-sn 3695  df-pr 3696  df-op 3698  df-uni 3915  df-int 3950  df-br 4110  df-iota 5312  df-fv 5360  df-ov 6053  df-inn 9238  df-2 9296  df-3 9297  df-4 9298  df-5 9299  df-6 9300  df-7 9301  df-8 9302  df-9 9303  df-dec 9710
This theorem is referenced by:  5t2e10  9808  5t4e20  9810
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