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Theorem mpv 3908
Description: Value of multiplication on positive reals.
Assertion
Ref Expression
mpv ((APBP) → (A ·P B) = {x∣∃yz((yAzB) ∧ x = (y ·Q z))})
Distinct variable group(s):   x,y,z,A   x,B,y,z

Proof of Theorem mpv
StepHypRef Expression
1 df-mp 3883 . 2 ·P = {⟨⟨w, v⟩, u⟩∣((wPvP) ∧ u = {f∣∃gwhv f = (g ·Q h)})}
21genpv 3896 1 ((APBP) → (A ·P B) = {x∣∃yz((yAzB) ∧ x = (y ·Q z))})
Colors of variables: wff set class
Syntax hints:   → wi 2   ∧ wa 196  ∃wex 678  {cab 1090   = wceq 1091   ∈ wcel 1092  (class class class)co 3001   ·Q cmq 3776  Pcnp 3779   ·P cmp 3782
This theorem is referenced by:  mulcompr 3919
This theorem was proved from axioms:  ax-1 3  ax-2 4  ax-3 5  ax-mp 6  ax-4 673  ax-5 674  ax-6 675  ax-7 676  ax-gen 677  ax-8 798  ax-9 799  ax-10 800  ax-11 801  ax-12 802  ax-13 804  ax-14 805  ax-16 922  ax-17 925  ax-ext 1074  ax-rep 1075  ax-un 1076  ax-pow 1077
This theorem depends on definitions:  df-bi 128  df-or 197  df-an 198  df-3an 583  df-ex 679  df-sb 853  df-eu 1009  df-mo 1010  df-clab 1093  df-cleq 1097  df-clel 1099  df-ral 1205  df-rex 1206  df-rab 1208  df-v 1349  df-dif 1489  df-un 1490  df-in 1491  df-ss 1492  df-nul 1708  df-pw 1799  df-sn 1811  df-pr 1812  df-op 1815  df-uni 1920  df-br 2063  df-opab 2098  df-id 2125  df-xp 2424  df-rel 2425  df-cnv 2426  df-co 2427  df-dm 2428  df-rn 2429  df-res 2430  df-ima 2431  df-fun 2432  df-fv 2438  df-opr 3003  df-oprab 3004  df-mp 3883
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