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Mirrors > Home > MPE Home > Th. List > Mathboxes > reladdrsub | Structured version Visualization version GIF version |
Description: Move LHS of a sum into RHS of a (real) difference. Version of mvlladdd 11053 with real subtraction. (Contributed by Steven Nguyen, 8-Jan-2023.) |
Ref | Expression |
---|---|
reladdrsub.1 | ⊢ (𝜑 → 𝐴 ∈ ℝ) |
reladdrsub.2 | ⊢ (𝜑 → 𝐵 ∈ ℝ) |
reladdrsub.3 | ⊢ (𝜑 → (𝐴 + 𝐵) = 𝐶) |
Ref | Expression |
---|---|
reladdrsub | ⊢ (𝜑 → 𝐵 = (𝐶 −ℝ 𝐴)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | reladdrsub.3 | . . . 4 ⊢ (𝜑 → (𝐴 + 𝐵) = 𝐶) | |
2 | reladdrsub.1 | . . . . 5 ⊢ (𝜑 → 𝐴 ∈ ℝ) | |
3 | reladdrsub.2 | . . . . 5 ⊢ (𝜑 → 𝐵 ∈ ℝ) | |
4 | 2, 3 | readdcld 10672 | . . . 4 ⊢ (𝜑 → (𝐴 + 𝐵) ∈ ℝ) |
5 | 1, 4 | eqeltrrd 2916 | . . 3 ⊢ (𝜑 → 𝐶 ∈ ℝ) |
6 | resubadd 39216 | . . . 4 ⊢ ((𝐶 ∈ ℝ ∧ 𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → ((𝐶 −ℝ 𝐴) = 𝐵 ↔ (𝐴 + 𝐵) = 𝐶)) | |
7 | 1, 6 | syl5ibrcom 249 | . . 3 ⊢ (𝜑 → ((𝐶 ∈ ℝ ∧ 𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐶 −ℝ 𝐴) = 𝐵)) |
8 | 5, 2, 3, 7 | mp3and 1460 | . 2 ⊢ (𝜑 → (𝐶 −ℝ 𝐴) = 𝐵) |
9 | 8 | eqcomd 2829 | 1 ⊢ (𝜑 → 𝐵 = (𝐶 −ℝ 𝐴)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ w3a 1083 = wceq 1537 ∈ wcel 2114 (class class class)co 7158 ℝcr 10538 + caddc 10542 −ℝ cresub 39202 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2795 ax-sep 5205 ax-nul 5212 ax-pow 5268 ax-pr 5332 ax-un 7463 ax-resscn 10596 ax-addrcl 10600 ax-addass 10604 ax-rnegex 10610 ax-pre-lttri 10613 ax-pre-lttrn 10614 ax-pre-ltadd 10615 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2802 df-cleq 2816 df-clel 2895 df-nfc 2965 df-ne 3019 df-nel 3126 df-ral 3145 df-rex 3146 df-reu 3147 df-rmo 3148 df-rab 3149 df-v 3498 df-sbc 3775 df-csb 3886 df-dif 3941 df-un 3943 df-in 3945 df-ss 3954 df-nul 4294 df-if 4470 df-pw 4543 df-sn 4570 df-pr 4572 df-op 4576 df-uni 4841 df-br 5069 df-opab 5131 df-mpt 5149 df-id 5462 df-po 5476 df-so 5477 df-xp 5563 df-rel 5564 df-cnv 5565 df-co 5566 df-dm 5567 df-rn 5568 df-res 5569 df-ima 5570 df-iota 6316 df-fun 6359 df-fn 6360 df-f 6361 df-f1 6362 df-fo 6363 df-f1o 6364 df-fv 6365 df-riota 7116 df-ov 7161 df-oprab 7162 df-mpo 7163 df-er 8291 df-en 8512 df-dom 8513 df-sdom 8514 df-pnf 10679 df-mnf 10680 df-ltxr 10682 df-resub 39203 |
This theorem is referenced by: resubsub4 39226 resubidaddid1lem 39231 resubdi 39233 re1m1e0m0 39234 re0m0e0 39239 |
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