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| Mirrors > Home > HSE Home > Th. List > hvmulcan2 | Structured version Visualization version GIF version | ||
| Description: Cancellation law for scalar multiplication. (Contributed by NM, 19-May-2005.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| hvmulcan2 | ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ (𝐶 ∈ ℋ ∧ 𝐶 ≠ 0ℎ)) → ((𝐴 ·ℎ 𝐶) = (𝐵 ·ℎ 𝐶) ↔ 𝐴 = 𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | hvmulcl 31494 | . . . . 5 ⊢ ((𝐴 ∈ ℂ ∧ 𝐶 ∈ ℋ) → (𝐴 ·ℎ 𝐶) ∈ ℋ) | |
| 2 | 1 | 3adant2 1149 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℋ) → (𝐴 ·ℎ 𝐶) ∈ ℋ) |
| 3 | hvmulcl 31494 | . . . . 5 ⊢ ((𝐵 ∈ ℂ ∧ 𝐶 ∈ ℋ) → (𝐵 ·ℎ 𝐶) ∈ ℋ) | |
| 4 | 3 | 3adant1 1148 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℋ) → (𝐵 ·ℎ 𝐶) ∈ ℋ) |
| 5 | hvsubeq0 31549 | . . . 4 ⊢ (((𝐴 ·ℎ 𝐶) ∈ ℋ ∧ (𝐵 ·ℎ 𝐶) ∈ ℋ) → (((𝐴 ·ℎ 𝐶) −ℎ (𝐵 ·ℎ 𝐶)) = 0ℎ ↔ (𝐴 ·ℎ 𝐶) = (𝐵 ·ℎ 𝐶))) | |
| 6 | 2, 4, 5 | syl2anc 596 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℋ) → (((𝐴 ·ℎ 𝐶) −ℎ (𝐵 ·ℎ 𝐶)) = 0ℎ ↔ (𝐴 ·ℎ 𝐶) = (𝐵 ·ℎ 𝐶))) |
| 7 | 6 | 3adant3r 1200 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ (𝐶 ∈ ℋ ∧ 𝐶 ≠ 0ℎ)) → (((𝐴 ·ℎ 𝐶) −ℎ (𝐵 ·ℎ 𝐶)) = 0ℎ ↔ (𝐴 ·ℎ 𝐶) = (𝐵 ·ℎ 𝐶))) |
| 8 | hvsubdistr2 31531 | . . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℋ) → ((𝐴 − 𝐵) ·ℎ 𝐶) = ((𝐴 ·ℎ 𝐶) −ℎ (𝐵 ·ℎ 𝐶))) | |
| 9 | 8 | eqeq1d 2762 | . . . . 5 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℋ) → (((𝐴 − 𝐵) ·ℎ 𝐶) = 0ℎ ↔ ((𝐴 ·ℎ 𝐶) −ℎ (𝐵 ·ℎ 𝐶)) = 0ℎ)) |
| 10 | subcl 11480 | . . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (𝐴 − 𝐵) ∈ ℂ) | |
| 11 | hvmul0or 31506 | . . . . . 6 ⊢ (((𝐴 − 𝐵) ∈ ℂ ∧ 𝐶 ∈ ℋ) → (((𝐴 − 𝐵) ·ℎ 𝐶) = 0ℎ ↔ ((𝐴 − 𝐵) = 0 ∨ 𝐶 = 0ℎ))) | |
| 12 | 10, 11 | stoic3 1809 | . . . . 5 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℋ) → (((𝐴 − 𝐵) ·ℎ 𝐶) = 0ℎ ↔ ((𝐴 − 𝐵) = 0 ∨ 𝐶 = 0ℎ))) |
| 13 | 9, 12 | bitr3d 284 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℋ) → (((𝐴 ·ℎ 𝐶) −ℎ (𝐵 ·ℎ 𝐶)) = 0ℎ ↔ ((𝐴 − 𝐵) = 0 ∨ 𝐶 = 0ℎ))) |
| 14 | 13 | 3adant3r 1200 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ (𝐶 ∈ ℋ ∧ 𝐶 ≠ 0ℎ)) → (((𝐴 ·ℎ 𝐶) −ℎ (𝐵 ·ℎ 𝐶)) = 0ℎ ↔ ((𝐴 − 𝐵) = 0 ∨ 𝐶 = 0ℎ))) |
| 15 | df-ne 2956 | . . . . . 6 ⊢ (𝐶 ≠ 0ℎ ↔ ¬ 𝐶 = 0ℎ) | |
| 16 | biorf 950 | . . . . . . 7 ⊢ (¬ 𝐶 = 0ℎ → ((𝐴 − 𝐵) = 0 ↔ (𝐶 = 0ℎ ∨ (𝐴 − 𝐵) = 0))) | |
| 17 | orcom 884 | . . . . . . 7 ⊢ ((𝐶 = 0ℎ ∨ (𝐴 − 𝐵) = 0) ↔ ((𝐴 − 𝐵) = 0 ∨ 𝐶 = 0ℎ)) | |
| 18 | 16, 17 | bitrdi 290 | . . . . . 6 ⊢ (¬ 𝐶 = 0ℎ → ((𝐴 − 𝐵) = 0 ↔ ((𝐴 − 𝐵) = 0 ∨ 𝐶 = 0ℎ))) |
| 19 | 15, 18 | sylbi 220 | . . . . 5 ⊢ (𝐶 ≠ 0ℎ → ((𝐴 − 𝐵) = 0 ↔ ((𝐴 − 𝐵) = 0 ∨ 𝐶 = 0ℎ))) |
| 20 | 19 | ad2antll 742 | . . . 4 ⊢ ((𝐵 ∈ ℂ ∧ (𝐶 ∈ ℋ ∧ 𝐶 ≠ 0ℎ)) → ((𝐴 − 𝐵) = 0 ↔ ((𝐴 − 𝐵) = 0 ∨ 𝐶 = 0ℎ))) |
| 21 | 20 | 3adant1 1148 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ (𝐶 ∈ ℋ ∧ 𝐶 ≠ 0ℎ)) → ((𝐴 − 𝐵) = 0 ↔ ((𝐴 − 𝐵) = 0 ∨ 𝐶 = 0ℎ))) |
| 22 | subeq0 11508 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → ((𝐴 − 𝐵) = 0 ↔ 𝐴 = 𝐵)) | |
| 23 | 22 | 3adant3 1150 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ (𝐶 ∈ ℋ ∧ 𝐶 ≠ 0ℎ)) → ((𝐴 − 𝐵) = 0 ↔ 𝐴 = 𝐵)) |
| 24 | 14, 21, 23 | 3bitr2d 310 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ (𝐶 ∈ ℋ ∧ 𝐶 ≠ 0ℎ)) → (((𝐴 ·ℎ 𝐶) −ℎ (𝐵 ·ℎ 𝐶)) = 0ℎ ↔ 𝐴 = 𝐵)) |
| 25 | 7, 24 | bitr3d 284 | 1 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ (𝐶 ∈ ℋ ∧ 𝐶 ≠ 0ℎ)) → ((𝐴 ·ℎ 𝐶) = (𝐵 ·ℎ 𝐶) ↔ 𝐴 = 𝐵)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ¬ wn 3 → wi 4 ↔ wb 209 ∧ wa 401 ∨ wo 861 ∧ w3a 1103 = wceq 1570 ∈ wcel 2145 ≠ wne 2955 (class class class)co 7413 ℂcc 11122 0cc0 11124 − cmin 11465 ℋchba 31400 ·ℎ csm 31402 0ℎc0v 31405 −ℎ cmv 31406 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-sep 5251 ax-nul 5263 ax-pow 5330 ax-pr 5398 ax-un 7736 ax-resscn 11181 ax-1cn 11182 ax-icn 11183 ax-addcl 11184 ax-addrcl 11185 ax-mulcl 11186 ax-mulrcl 11187 ax-mulcom 11188 ax-addass 11189 ax-mulass 11190 ax-distr 11191 ax-i2m1 11192 ax-1ne0 11193 ax-1rid 11194 ax-rnegex 11195 ax-rrecex 11196 ax-cnre 11197 ax-pre-lttri 11198 ax-pre-lttrn 11199 ax-pre-ltadd 11200 ax-pre-mulgt0 11201 ax-hvcom 31482 ax-hvass 31483 ax-hv0cl 31484 ax-hvaddid 31485 ax-hfvmul 31486 ax-hvmulid 31487 ax-hvmulass 31488 ax-hvdistr2 31490 ax-hvmul0 31491 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 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-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-id 5550 df-po 5563 df-so 5564 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-iota 6489 df-fun 6535 df-fn 6536 df-f 6537 df-f1 6538 df-fo 6539 df-f1o 6540 df-fv 6541 df-riota 7370 df-ov 7416 df-oprab 7417 df-mpo 7418 df-er 8696 df-en 8953 df-dom 8954 df-sdom 8955 df-pnf 11269 df-mnf 11270 df-xr 11271 df-ltxr 11272 df-le 11273 df-sub 11467 df-neg 11468 df-div 11896 df-hvsub 31452 |
| This theorem is used by: (None) |
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