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Mirrors > Home > MPE Home > Th. List > addsub | Structured version Visualization version GIF version |
Description: Law for addition and subtraction. (Contributed by NM, 19-Aug-2001.) (Proof shortened by Andrew Salmon, 22-Oct-2011.) |
Ref | Expression |
---|---|
addsub | ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → ((𝐴 + 𝐵) − 𝐶) = ((𝐴 − 𝐶) + 𝐵)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | addcom 11262 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (𝐴 + 𝐵) = (𝐵 + 𝐴)) | |
2 | 1 | oveq1d 7352 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → ((𝐴 + 𝐵) − 𝐶) = ((𝐵 + 𝐴) − 𝐶)) |
3 | 2 | 3adant3 1131 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → ((𝐴 + 𝐵) − 𝐶) = ((𝐵 + 𝐴) − 𝐶)) |
4 | addsubass 11332 | . . 3 ⊢ ((𝐵 ∈ ℂ ∧ 𝐴 ∈ ℂ ∧ 𝐶 ∈ ℂ) → ((𝐵 + 𝐴) − 𝐶) = (𝐵 + (𝐴 − 𝐶))) | |
5 | 4 | 3com12 1122 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → ((𝐵 + 𝐴) − 𝐶) = (𝐵 + (𝐴 − 𝐶))) |
6 | subcl 11321 | . . . . 5 ⊢ ((𝐴 ∈ ℂ ∧ 𝐶 ∈ ℂ) → (𝐴 − 𝐶) ∈ ℂ) | |
7 | addcom 11262 | . . . . 5 ⊢ ((𝐵 ∈ ℂ ∧ (𝐴 − 𝐶) ∈ ℂ) → (𝐵 + (𝐴 − 𝐶)) = ((𝐴 − 𝐶) + 𝐵)) | |
8 | 6, 7 | sylan2 593 | . . . 4 ⊢ ((𝐵 ∈ ℂ ∧ (𝐴 ∈ ℂ ∧ 𝐶 ∈ ℂ)) → (𝐵 + (𝐴 − 𝐶)) = ((𝐴 − 𝐶) + 𝐵)) |
9 | 8 | 3impb 1114 | . . 3 ⊢ ((𝐵 ∈ ℂ ∧ 𝐴 ∈ ℂ ∧ 𝐶 ∈ ℂ) → (𝐵 + (𝐴 − 𝐶)) = ((𝐴 − 𝐶) + 𝐵)) |
10 | 9 | 3com12 1122 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → (𝐵 + (𝐴 − 𝐶)) = ((𝐴 − 𝐶) + 𝐵)) |
11 | 3, 5, 10 | 3eqtrd 2780 | 1 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → ((𝐴 + 𝐵) − 𝐶) = ((𝐴 − 𝐶) + 𝐵)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 396 ∧ w3a 1086 = wceq 1540 ∈ wcel 2105 (class class class)co 7337 ℂcc 10970 + caddc 10975 − cmin 11306 |
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 1912 ax-6 1970 ax-7 2010 ax-8 2107 ax-9 2115 ax-10 2136 ax-11 2153 ax-12 2170 ax-ext 2707 ax-sep 5243 ax-nul 5250 ax-pow 5308 ax-pr 5372 ax-un 7650 ax-resscn 11029 ax-1cn 11030 ax-icn 11031 ax-addcl 11032 ax-addrcl 11033 ax-mulcl 11034 ax-mulrcl 11035 ax-mulcom 11036 ax-addass 11037 ax-mulass 11038 ax-distr 11039 ax-i2m1 11040 ax-1ne0 11041 ax-1rid 11042 ax-rnegex 11043 ax-rrecex 11044 ax-cnre 11045 ax-pre-lttri 11046 ax-pre-lttrn 11047 ax-pre-ltadd 11048 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1781 df-nf 1785 df-sb 2067 df-mo 2538 df-eu 2567 df-clab 2714 df-cleq 2728 df-clel 2814 df-nfc 2886 df-ne 2941 df-nel 3047 df-ral 3062 df-rex 3071 df-reu 3350 df-rab 3404 df-v 3443 df-sbc 3728 df-csb 3844 df-dif 3901 df-un 3903 df-in 3905 df-ss 3915 df-nul 4270 df-if 4474 df-pw 4549 df-sn 4574 df-pr 4576 df-op 4580 df-uni 4853 df-br 5093 df-opab 5155 df-mpt 5176 df-id 5518 df-po 5532 df-so 5533 df-xp 5626 df-rel 5627 df-cnv 5628 df-co 5629 df-dm 5630 df-rn 5631 df-res 5632 df-ima 5633 df-iota 6431 df-fun 6481 df-fn 6482 df-f 6483 df-f1 6484 df-fo 6485 df-f1o 6486 df-fv 6487 df-riota 7293 df-ov 7340 df-oprab 7341 df-mpo 7342 df-er 8569 df-en 8805 df-dom 8806 df-sdom 8807 df-pnf 11112 df-mnf 11113 df-ltxr 11115 df-sub 11308 |
This theorem is referenced by: subadd23 11334 2addsub 11336 nnpcan 11345 subsub 11352 npncan3 11360 addsub4 11365 addsubi 11414 addsubd 11454 muleqadd 11720 nnaddm1cl 12478 modsumfzodifsn 13765 expubnd 13996 cvgrat 15694 omeo 16174 |
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