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Theorem distrpr 8648
Description: Multiplication of positive reals is distributive. Proposition 9-3.7(iii) of [Gleason] p. 124. (Contributed by NM, 2-May-1996.) (New usage is discouraged.)
Assertion
Ref Expression
distrpr  |-  ( A  .P.  ( B  +P.  C ) )  =  ( ( A  .P.  B
)  +P.  ( A  .P.  C ) )

Proof of Theorem distrpr
StepHypRef Expression
1 distrlem1pr 8645 . . 3  |-  ( ( A  e.  P.  /\  B  e.  P.  /\  C  e.  P. )  ->  ( A  .P.  ( B  +P.  C ) )  C_  (
( A  .P.  B
)  +P.  ( A  .P.  C ) ) )
2 distrlem5pr 8647 . . 3  |-  ( ( A  e.  P.  /\  B  e.  P.  /\  C  e.  P. )  ->  (
( A  .P.  B
)  +P.  ( A  .P.  C ) )  C_  ( A  .P.  ( B  +P.  C ) ) )
31, 2eqssd 3198 . 2  |-  ( ( A  e.  P.  /\  B  e.  P.  /\  C  e.  P. )  ->  ( A  .P.  ( B  +P.  C ) )  =  ( ( A  .P.  B
)  +P.  ( A  .P.  C ) ) )
4 dmplp 8632 . . 3  |-  dom  +P.  =  ( P.  X.  P. )
5 0npr 8612 . . 3  |-  -.  (/)  e.  P.
6 dmmp 8633 . . 3  |-  dom  .P.  =  ( P.  X.  P. )
74, 5, 6ndmovdistr 5971 . 2  |-  ( -.  ( A  e.  P.  /\  B  e.  P.  /\  C  e.  P. )  ->  ( A  .P.  ( B  +P.  C ) )  =  ( ( A  .P.  B )  +P.  ( A  .P.  C
) ) )
83, 7pm2.61i 158 1  |-  ( A  .P.  ( B  +P.  C ) )  =  ( ( A  .P.  B
)  +P.  ( A  .P.  C ) )
Colors of variables: wff set class
Syntax hints:    /\ w3a 936    = wceq 1624    e. wcel 1685  (class class class)co 5820   P.cnp 8477    +P. cpp 8479    .P. cmp 8480
This theorem is referenced by:  mulcmpblnrlem  8691  mulasssr  8708  distrsr  8709  m1m1sr  8711  1idsr  8716  recexsrlem  8721  mulgt0sr  8723
This theorem was proved from axioms:  ax-1 7  ax-2 8  ax-3 9  ax-mp 10  ax-gen 1534  ax-5 1545  ax-17 1604  ax-9 1637  ax-8 1645  ax-13 1687  ax-14 1689  ax-6 1704  ax-7 1709  ax-11 1716  ax-12 1868  ax-ext 2266  ax-sep 4143  ax-nul 4151  ax-pow 4188  ax-pr 4214  ax-un 4512  ax-inf2 7338
This theorem depends on definitions:  df-bi 179  df-or 361  df-an 362  df-3or 937  df-3an 938  df-tru 1312  df-ex 1530  df-nf 1533  df-sb 1632  df-eu 2149  df-mo 2150  df-clab 2272  df-cleq 2278  df-clel 2281  df-nfc 2410  df-ne 2450  df-ral 2550  df-rex 2551  df-reu 2552  df-rmo 2553  df-rab 2554  df-v 2792  df-sbc 2994  df-csb 3084  df-dif 3157  df-un 3159  df-in 3161  df-ss 3168  df-pss 3170  df-nul 3458  df-if 3568  df-pw 3629  df-sn 3648  df-pr 3649  df-tp 3650  df-op 3651  df-uni 3830  df-iun 3909  df-br 4026  df-opab 4080  df-mpt 4081  df-tr 4116  df-eprel 4305  df-id 4309  df-po 4314  df-so 4315  df-fr 4352  df-we 4354  df-ord 4395  df-on 4396  df-lim 4397  df-suc 4398  df-om 4657  df-xp 4695  df-rel 4696  df-cnv 4697  df-co 4698  df-dm 4699  df-rn 4700  df-res 4701  df-ima 4702  df-fun 5224  df-fn 5225  df-f 5226  df-f1 5227  df-fo 5228  df-f1o 5229  df-fv 5230  df-ov 5823  df-oprab 5824  df-mpt2 5825  df-1st 6084  df-2nd 6085  df-recs 6384  df-rdg 6419  df-1o 6475  df-oadd 6479  df-omul 6480  df-er 6656  df-ni 8492  df-pli 8493  df-mi 8494  df-lti 8495  df-plpq 8528  df-mpq 8529  df-ltpq 8530  df-enq 8531  df-nq 8532  df-erq 8533  df-plq 8534  df-mq 8535  df-1nq 8536  df-rq 8537  df-ltnq 8538  df-np 8601  df-plp 8603  df-mp 8604
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