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Theorem addcnsrec 11086
Description: Technical trick to permit re-use of some equivalence class lemmas for operation laws. See dfcnqs 11085 and mulcnsrec 11087. (Contributed by NM, 13-Aug-1995.) (New usage is discouraged.)
Assertion
Ref Expression
addcnsrec (((𝐴R𝐵R) ∧ (𝐶R𝐷R)) → ([⟨𝐴, 𝐵⟩] E + [⟨𝐶, 𝐷⟩] E ) = [⟨(𝐴 +R 𝐶), (𝐵 +R 𝐷)⟩] E )

Proof of Theorem addcnsrec
StepHypRef Expression
1 addcnsr 11078 . 2 (((𝐴R𝐵R) ∧ (𝐶R𝐷R)) → (⟨𝐴, 𝐵⟩ + ⟨𝐶, 𝐷⟩) = ⟨(𝐴 +R 𝐶), (𝐵 +R 𝐷)⟩)
2 opex 5426 . . . 4 𝐴, 𝐵⟩ ∈ V
32ecid 8728 . . 3 [⟨𝐴, 𝐵⟩] E = ⟨𝐴, 𝐵
4 opex 5426 . . . 4 𝐶, 𝐷⟩ ∈ V
54ecid 8728 . . 3 [⟨𝐶, 𝐷⟩] E = ⟨𝐶, 𝐷
63, 5oveq12i 7374 . 2 ([⟨𝐴, 𝐵⟩] E + [⟨𝐶, 𝐷⟩] E ) = (⟨𝐴, 𝐵⟩ + ⟨𝐶, 𝐷⟩)
7 opex 5426 . . 3 ⟨(𝐴 +R 𝐶), (𝐵 +R 𝐷)⟩ ∈ V
87ecid 8728 . 2 [⟨(𝐴 +R 𝐶), (𝐵 +R 𝐷)⟩] E = ⟨(𝐴 +R 𝐶), (𝐵 +R 𝐷)⟩
91, 6, 83eqtr4g 2802 1 (((𝐴R𝐵R) ∧ (𝐶R𝐷R)) → ([⟨𝐴, 𝐵⟩] E + [⟨𝐶, 𝐷⟩] E ) = [⟨(𝐴 +R 𝐶), (𝐵 +R 𝐷)⟩] E )
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 397   = wceq 1542  wcel 2107  cop 4597   E cep 5541  ccnv 5637  (class class class)co 7362  [cec 8653  Rcnr 10808   +R cplr 10812   + caddc 11061
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1798  ax-4 1812  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2109  ax-9 2117  ax-10 2138  ax-11 2155  ax-12 2172  ax-ext 2708  ax-sep 5261  ax-nul 5268  ax-pr 5389
This theorem depends on definitions:  df-bi 206  df-an 398  df-or 847  df-3an 1090  df-tru 1545  df-fal 1555  df-ex 1783  df-nf 1787  df-sb 2069  df-mo 2539  df-eu 2568  df-clab 2715  df-cleq 2729  df-clel 2815  df-nfc 2890  df-ne 2945  df-ral 3066  df-rex 3075  df-rab 3411  df-v 3450  df-dif 3918  df-un 3920  df-in 3922  df-ss 3932  df-nul 4288  df-if 4492  df-sn 4592  df-pr 4594  df-op 4598  df-uni 4871  df-br 5111  df-opab 5173  df-id 5536  df-eprel 5542  df-xp 5644  df-rel 5645  df-cnv 5646  df-co 5647  df-dm 5648  df-rn 5649  df-res 5650  df-ima 5651  df-iota 6453  df-fun 6503  df-fv 6509  df-ov 7365  df-oprab 7366  df-ec 8657  df-c 11064  df-add 11069
This theorem is referenced by:  axaddass  11099  axdistr  11101
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