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Theorem subaddrii 8467
Description: Relationship between subtraction and addition. (Contributed by NM, 16-Dec-2006.)
Hypotheses
Ref Expression
negidi.1  |-  A  e.  CC
pncan3i.2  |-  B  e.  CC
subadd.3  |-  C  e.  CC
subaddri.4  |-  ( B  +  C )  =  A
Assertion
Ref Expression
subaddrii  |-  ( A  -  B )  =  C

Proof of Theorem subaddrii
StepHypRef Expression
1 subaddri.4 . 2  |-  ( B  +  C )  =  A
2 negidi.1 . . 3  |-  A  e.  CC
3 pncan3i.2 . . 3  |-  B  e.  CC
4 subadd.3 . . 3  |-  C  e.  CC
52, 3, 4subaddi 8465 . 2  |-  ( ( A  -  B )  =  C  <->  ( B  +  C )  =  A )
61, 5mpbir 146 1  |-  ( A  -  B )  =  C
Colors of variables: wff set class
Syntax hints:    = wceq 1397    e. wcel 2202  (class class class)co 6017   CCcc 8029    + caddc 8034    - cmin 8349
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-14 2205  ax-ext 2213  ax-sep 4207  ax-pow 4264  ax-pr 4299  ax-setind 4635  ax-resscn 8123  ax-1cn 8124  ax-icn 8126  ax-addcl 8127  ax-addrcl 8128  ax-mulcl 8129  ax-addcom 8131  ax-addass 8133  ax-distr 8135  ax-i2m1 8136  ax-0id 8139  ax-rnegex 8140  ax-cnre 8142
This theorem depends on definitions:  df-bi 117  df-3an 1006  df-tru 1400  df-fal 1403  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-reu 2517  df-rab 2519  df-v 2804  df-sbc 3032  df-dif 3202  df-un 3204  df-in 3206  df-ss 3213  df-pw 3654  df-sn 3675  df-pr 3676  df-op 3678  df-uni 3894  df-br 4089  df-opab 4151  df-id 4390  df-xp 4731  df-rel 4732  df-cnv 4733  df-co 4734  df-dm 4735  df-iota 5286  df-fun 5328  df-fv 5334  df-riota 5970  df-ov 6020  df-oprab 6021  df-mpo 6022  df-sub 8351
This theorem is referenced by:  2m1e1  9260  3m1e2  9262  halfthird  9752  5recm6rec  9753  fzo0to42pr  10464  4bc3eq4  11034  4bc2eq6  11035  cos1bnd  12319  cos2bnd  12320  pythagtriplem1  12837  cosq14gt0  15555  sincos6thpi  15565  lgsdir2lem1  15756
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