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| Mirrors > Home > MPE Home > Th. List > Mathboxes > repncan2 | Structured version Visualization version GIF version | ||
| Description: Addition and subtraction of equals. Compare pncan2 11423. (Contributed by Steven Nguyen, 8-Jan-2023.) |
| Ref | Expression |
|---|---|
| repncan2 | ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → ((𝐴 + 𝐵) −ℝ 𝐴) = 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqid 2752 | . 2 ⊢ (𝐴 + 𝐵) = (𝐴 + 𝐵) | |
| 2 | readdcl 11142 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐴 + 𝐵) ∈ ℝ) | |
| 3 | simpl 485 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → 𝐴 ∈ ℝ) | |
| 4 | simpr 487 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → 𝐵 ∈ ℝ) | |
| 5 | 2, 3, 4 | resubaddd 42927 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (((𝐴 + 𝐵) −ℝ 𝐴) = 𝐵 ↔ (𝐴 + 𝐵) = (𝐴 + 𝐵))) |
| 6 | 1, 5 | mpbiri 260 | 1 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → ((𝐴 + 𝐵) −ℝ 𝐴) = 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 398 = wceq 1550 ∈ wcel 2132 (class class class)co 7381 ℝcr 11058 + caddc 11062 −ℝ cresub 42912 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1805 ax-4 1819 ax-5 1920 ax-6 1977 ax-7 2018 ax-8 2134 ax-9 2142 ax-10 2165 ax-11 2181 ax-12 2202 ax-ext 2724 ax-sep 5236 ax-nul 5246 ax-pow 5312 ax-pr 5380 ax-un 7703 ax-resscn 11116 ax-addrcl 11120 ax-addass 11124 ax-rnegex 11130 ax-pre-lttri 11133 ax-pre-lttrn 11134 ax-pre-ltadd 11135 |
| This theorem depends on definitions: df-bi 209 df-an 399 df-or 857 df-3or 1096 df-3an 1097 df-tru 1553 df-fal 1563 df-ex 1790 df-nf 1794 df-sb 2081 df-mo 2556 df-eu 2586 df-clab 2731 df-cleq 2744 df-clel 2827 df-nfc 2901 df-ne 2948 df-nel 3052 df-ral 3067 df-rex 3077 df-rmo 3357 df-reu 3358 df-rab 3405 df-v 3446 df-sbc 3736 df-csb 3844 df-dif 3898 df-un 3900 df-in 3902 df-ss 3912 df-nul 4277 df-if 4471 df-pw 4547 df-sn 4573 df-pr 4575 df-op 4579 df-uni 4856 df-br 5091 df-opab 5153 df-mpt 5172 df-id 5531 df-po 5544 df-so 5545 df-xp 5642 df-rel 5643 df-cnv 5644 df-co 5645 df-dm 5646 df-rn 5647 df-res 5648 df-ima 5649 df-iota 6462 df-fun 6508 df-fn 6509 df-f 6510 df-f1 6511 df-fo 6512 df-f1o 6513 df-fv 6514 df-riota 7338 df-ov 7384 df-oprab 7385 df-mpo 7386 df-er 8662 df-en 8913 df-dom 8914 df-sdom 8915 df-pnf 11204 df-mnf 11205 df-ltxr 11207 df-resub 42913 |
| This theorem is referenced by: reltsubadd2 42934 repnpcan 42939 resubidaddlid 42942 |
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