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| Mirrors > Home > ILE Home > Th. List > negsubdi | GIF version | ||
| Description: Distribution of negative over subtraction. (Contributed by NM, 15-Nov-2004.) (Proof shortened by Mario Carneiro, 27-May-2016.) |
| Ref | Expression |
|---|---|
| negsubdi | ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → -(𝐴 − 𝐵) = (-𝐴 + 𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0cn 8171 | . . 3 ⊢ 0 ∈ ℂ | |
| 2 | subsub 8409 | . . 3 ⊢ ((0 ∈ ℂ ∧ 𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (0 − (𝐴 − 𝐵)) = ((0 − 𝐴) + 𝐵)) | |
| 3 | 1, 2 | mp3an1 1360 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (0 − (𝐴 − 𝐵)) = ((0 − 𝐴) + 𝐵)) |
| 4 | df-neg 8353 | . 2 ⊢ -(𝐴 − 𝐵) = (0 − (𝐴 − 𝐵)) | |
| 5 | df-neg 8353 | . . 3 ⊢ -𝐴 = (0 − 𝐴) | |
| 6 | 5 | oveq1i 6028 | . 2 ⊢ (-𝐴 + 𝐵) = ((0 − 𝐴) + 𝐵) |
| 7 | 3, 4, 6 | 3eqtr4g 2289 | 1 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → -(𝐴 − 𝐵) = (-𝐴 + 𝐵)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 = wceq 1397 ∈ wcel 2202 (class class class)co 6018 ℂcc 8030 0cc0 8032 + caddc 8035 − cmin 8350 -cneg 8351 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 619 ax-in2 620 ax-io 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-14 2205 ax-ext 2213 ax-sep 4207 ax-pow 4264 ax-pr 4299 ax-setind 4635 ax-resscn 8124 ax-1cn 8125 ax-icn 8127 ax-addcl 8128 ax-addrcl 8129 ax-mulcl 8130 ax-addcom 8132 ax-addass 8134 ax-distr 8136 ax-i2m1 8137 ax-0id 8140 ax-rnegex 8141 ax-cnre 8143 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-fal 1403 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ne 2403 df-ral 2515 df-rex 2516 df-reu 2517 df-rab 2519 df-v 2804 df-sbc 3032 df-dif 3202 df-un 3204 df-in 3206 df-ss 3213 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-br 4089 df-opab 4151 df-id 4390 df-xp 4731 df-rel 4732 df-cnv 4733 df-co 4734 df-dm 4735 df-iota 5286 df-fun 5328 df-fv 5334 df-riota 5971 df-ov 6021 df-oprab 6022 df-mpo 6023 df-sub 8352 df-neg 8353 |
| This theorem is referenced by: negdi 8436 negsubdi2 8438 neg2sub 8439 negsubdid 8505 odd2np1 12439 sin2pim 15543 cos2pim 15544 |
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