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| Mirrors > Home > MPE Home > Th. List > addneintrd | Structured version Visualization version GIF version | ||
| Description: Introducing a term on the left-hand side of a sum in a negated equality. Contrapositive of addcanad 11522. Consequence of addcand 11520. (Contributed by David Moews, 28-Feb-2017.) |
| Ref | Expression |
|---|---|
| muld.1 | ⊢ (𝜑 → 𝐴 ∈ ℂ) |
| addcomd.2 | ⊢ (𝜑 → 𝐵 ∈ ℂ) |
| addcand.3 | ⊢ (𝜑 → 𝐶 ∈ ℂ) |
| addneintrd.4 | ⊢ (𝜑 → 𝐵 ≠ 𝐶) |
| Ref | Expression |
|---|---|
| addneintrd | ⊢ (𝜑 → (𝐴 + 𝐵) ≠ (𝐴 + 𝐶)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | addneintrd.4 | . 2 ⊢ (𝜑 → 𝐵 ≠ 𝐶) | |
| 2 | muld.1 | . . . 4 ⊢ (𝜑 → 𝐴 ∈ ℂ) | |
| 3 | addcomd.2 | . . . 4 ⊢ (𝜑 → 𝐵 ∈ ℂ) | |
| 4 | addcand.3 | . . . 4 ⊢ (𝜑 → 𝐶 ∈ ℂ) | |
| 5 | 2, 3, 4 | addcand 11520 | . . 3 ⊢ (𝜑 → ((𝐴 + 𝐵) = (𝐴 + 𝐶) ↔ 𝐵 = 𝐶)) |
| 6 | 5 | necon3bid 2999 | . 2 ⊢ (𝜑 → ((𝐴 + 𝐵) ≠ (𝐴 + 𝐶) ↔ 𝐵 ≠ 𝐶)) |
| 7 | 1, 6 | mpbird 260 | 1 ⊢ (𝜑 → (𝐴 + 𝐵) ≠ (𝐴 + 𝐶)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2144 ≠ wne 2955 (class class class)co 7424 ℂcc 11205 + caddc 11210 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-sep 5248 ax-nul 5259 ax-pow 5327 ax-pr 5391 ax-un 7755 ax-resscn 11264 ax-1cn 11265 ax-icn 11266 ax-addcl 11267 ax-addrcl 11268 ax-mulcl 11269 ax-mulrcl 11270 ax-mulcom 11271 ax-addass 11272 ax-mulass 11273 ax-distr 11274 ax-i2m1 11275 ax-1ne0 11276 ax-1rid 11277 ax-rnegex 11278 ax-rrecex 11279 ax-cnre 11280 ax-pre-lttri 11281 ax-pre-lttrn 11282 ax-pre-ltadd 11283 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3848 df-ss 3897 df-dif 4046 df-in 4090 df-un 4150 df-nul 4278 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-br 5103 df-opab 5167 df-mpt 5186 df-id 5546 df-po 5559 df-so 5560 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-iota 6497 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-ov 7427 df-er 8724 df-en 8981 df-dom 8982 df-sdom 8983 df-pnf 11352 df-mnf 11353 df-ltxr 11355 |
| This theorem is used by: xov1plusxeqvd 13636 chordthmlem 27169 aks6d1c2p2 43278 fourierdlem53 47277 |
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