Users' Mathboxes Mathbox for Steven Nguyen < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >   Mathboxes  >  renegadd Structured version   Visualization version   GIF version

Theorem renegadd 40276
Description: Relationship between real negation and addition. (Contributed by Steven Nguyen, 7-Jan-2023.)
Assertion
Ref Expression
renegadd ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → ((0 − 𝐴) = 𝐵 ↔ (𝐴 + 𝐵) = 0))

Proof of Theorem renegadd
Dummy variable 𝑥 is distinct from all other variables.
StepHypRef Expression
1 elre0re 40212 . . . . 5 (𝐴 ∈ ℝ → 0 ∈ ℝ)
2 resubval 40271 . . . . 5 ((0 ∈ ℝ ∧ 𝐴 ∈ ℝ) → (0 − 𝐴) = (𝑥 ∈ ℝ (𝐴 + 𝑥) = 0))
31, 2mpancom 684 . . . 4 (𝐴 ∈ ℝ → (0 − 𝐴) = (𝑥 ∈ ℝ (𝐴 + 𝑥) = 0))
43eqeq1d 2740 . . 3 (𝐴 ∈ ℝ → ((0 − 𝐴) = 𝐵 ↔ (𝑥 ∈ ℝ (𝐴 + 𝑥) = 0) = 𝐵))
54adantr 480 . 2 ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → ((0 − 𝐴) = 𝐵 ↔ (𝑥 ∈ ℝ (𝐴 + 𝑥) = 0) = 𝐵))
6 renegeu 40274 . . . 4 (𝐴 ∈ ℝ → ∃!𝑥 ∈ ℝ (𝐴 + 𝑥) = 0)
7 oveq2 7263 . . . . . 6 (𝑥 = 𝐵 → (𝐴 + 𝑥) = (𝐴 + 𝐵))
87eqeq1d 2740 . . . . 5 (𝑥 = 𝐵 → ((𝐴 + 𝑥) = 0 ↔ (𝐴 + 𝐵) = 0))
98riota2 7238 . . . 4 ((𝐵 ∈ ℝ ∧ ∃!𝑥 ∈ ℝ (𝐴 + 𝑥) = 0) → ((𝐴 + 𝐵) = 0 ↔ (𝑥 ∈ ℝ (𝐴 + 𝑥) = 0) = 𝐵))
106, 9sylan2 592 . . 3 ((𝐵 ∈ ℝ ∧ 𝐴 ∈ ℝ) → ((𝐴 + 𝐵) = 0 ↔ (𝑥 ∈ ℝ (𝐴 + 𝑥) = 0) = 𝐵))
1110ancoms 458 . 2 ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → ((𝐴 + 𝐵) = 0 ↔ (𝑥 ∈ ℝ (𝐴 + 𝑥) = 0) = 𝐵))
125, 11bitr4d 281 1 ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → ((0 − 𝐴) = 𝐵 ↔ (𝐴 + 𝐵) = 0))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 205  wa 395   = wceq 1539  wcel 2108  ∃!wreu 3065  crio 7211  (class class class)co 7255  cr 10801  0cc0 10802   + caddc 10805   cresub 40269
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1799  ax-4 1813  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2110  ax-9 2118  ax-10 2139  ax-11 2156  ax-12 2173  ax-ext 2709  ax-sep 5218  ax-nul 5225  ax-pow 5283  ax-pr 5347  ax-un 7566  ax-resscn 10859  ax-addrcl 10863  ax-rnegex 10873  ax-pre-lttri 10876  ax-pre-lttrn 10877  ax-pre-ltadd 10878
This theorem depends on definitions:  df-bi 206  df-an 396  df-or 844  df-3or 1086  df-3an 1087  df-tru 1542  df-fal 1552  df-ex 1784  df-nf 1788  df-sb 2069  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2817  df-nfc 2888  df-ne 2943  df-nel 3049  df-ral 3068  df-rex 3069  df-reu 3070  df-rmo 3071  df-rab 3072  df-v 3424  df-sbc 3712  df-csb 3829  df-dif 3886  df-un 3888  df-in 3890  df-ss 3900  df-nul 4254  df-if 4457  df-pw 4532  df-sn 4559  df-pr 4561  df-op 4565  df-uni 4837  df-br 5071  df-opab 5133  df-mpt 5154  df-id 5480  df-po 5494  df-so 5495  df-xp 5586  df-rel 5587  df-cnv 5588  df-co 5589  df-dm 5590  df-rn 5591  df-res 5592  df-ima 5593  df-iota 6376  df-fun 6420  df-fn 6421  df-f 6422  df-f1 6423  df-fo 6424  df-f1o 6425  df-fv 6426  df-riota 7212  df-ov 7258  df-oprab 7259  df-mpo 7260  df-er 8456  df-en 8692  df-dom 8693  df-sdom 8694  df-pnf 10942  df-mnf 10943  df-ltxr 10945  df-resub 40270
This theorem is referenced by:  renegid  40277  resubeulem1  40279  sn-inelr  40356
  Copyright terms: Public domain W3C validator