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| Mirrors > Home > HSE Home > Th. List > hvmulcan | Structured version Visualization version GIF version | ||
| Description: Cancellation law for scalar multiplication. (Contributed by NM, 19-May-2005.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| hvmulcan | ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → ((𝐴 ·ℎ 𝐵) = (𝐴 ·ℎ 𝐶) ↔ 𝐵 = 𝐶)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-ne 2927 | . . . . 5 ⊢ (𝐴 ≠ 0 ↔ ¬ 𝐴 = 0) | |
| 2 | biorf 936 | . . . . 5 ⊢ (¬ 𝐴 = 0 → ((𝐵 −ℎ 𝐶) = 0ℎ ↔ (𝐴 = 0 ∨ (𝐵 −ℎ 𝐶) = 0ℎ))) | |
| 3 | 1, 2 | sylbi 217 | . . . 4 ⊢ (𝐴 ≠ 0 → ((𝐵 −ℎ 𝐶) = 0ℎ ↔ (𝐴 = 0 ∨ (𝐵 −ℎ 𝐶) = 0ℎ))) |
| 4 | 3 | ad2antlr 727 | . . 3 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℋ) → ((𝐵 −ℎ 𝐶) = 0ℎ ↔ (𝐴 = 0 ∨ (𝐵 −ℎ 𝐶) = 0ℎ))) |
| 5 | 4 | 3adant3 1132 | . 2 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → ((𝐵 −ℎ 𝐶) = 0ℎ ↔ (𝐴 = 0 ∨ (𝐵 −ℎ 𝐶) = 0ℎ))) |
| 6 | hvsubeq0 31004 | . . 3 ⊢ ((𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → ((𝐵 −ℎ 𝐶) = 0ℎ ↔ 𝐵 = 𝐶)) | |
| 7 | 6 | 3adant1 1130 | . 2 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → ((𝐵 −ℎ 𝐶) = 0ℎ ↔ 𝐵 = 𝐶)) |
| 8 | hvsubdistr1 30985 | . . . . 5 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → (𝐴 ·ℎ (𝐵 −ℎ 𝐶)) = ((𝐴 ·ℎ 𝐵) −ℎ (𝐴 ·ℎ 𝐶))) | |
| 9 | 8 | eqeq1d 2732 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → ((𝐴 ·ℎ (𝐵 −ℎ 𝐶)) = 0ℎ ↔ ((𝐴 ·ℎ 𝐵) −ℎ (𝐴 ·ℎ 𝐶)) = 0ℎ)) |
| 10 | hvsubcl 30953 | . . . . . 6 ⊢ ((𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → (𝐵 −ℎ 𝐶) ∈ ℋ) | |
| 11 | hvmul0or 30961 | . . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ (𝐵 −ℎ 𝐶) ∈ ℋ) → ((𝐴 ·ℎ (𝐵 −ℎ 𝐶)) = 0ℎ ↔ (𝐴 = 0 ∨ (𝐵 −ℎ 𝐶) = 0ℎ))) | |
| 12 | 10, 11 | sylan2 593 | . . . . 5 ⊢ ((𝐴 ∈ ℂ ∧ (𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ)) → ((𝐴 ·ℎ (𝐵 −ℎ 𝐶)) = 0ℎ ↔ (𝐴 = 0 ∨ (𝐵 −ℎ 𝐶) = 0ℎ))) |
| 13 | 12 | 3impb 1114 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → ((𝐴 ·ℎ (𝐵 −ℎ 𝐶)) = 0ℎ ↔ (𝐴 = 0 ∨ (𝐵 −ℎ 𝐶) = 0ℎ))) |
| 14 | hvmulcl 30949 | . . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℋ) → (𝐴 ·ℎ 𝐵) ∈ ℋ) | |
| 15 | 14 | 3adant3 1132 | . . . . 5 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → (𝐴 ·ℎ 𝐵) ∈ ℋ) |
| 16 | hvmulcl 30949 | . . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ 𝐶 ∈ ℋ) → (𝐴 ·ℎ 𝐶) ∈ ℋ) | |
| 17 | 16 | 3adant2 1131 | . . . . 5 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → (𝐴 ·ℎ 𝐶) ∈ ℋ) |
| 18 | hvsubeq0 31004 | . . . . 5 ⊢ (((𝐴 ·ℎ 𝐵) ∈ ℋ ∧ (𝐴 ·ℎ 𝐶) ∈ ℋ) → (((𝐴 ·ℎ 𝐵) −ℎ (𝐴 ·ℎ 𝐶)) = 0ℎ ↔ (𝐴 ·ℎ 𝐵) = (𝐴 ·ℎ 𝐶))) | |
| 19 | 15, 17, 18 | syl2anc 584 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → (((𝐴 ·ℎ 𝐵) −ℎ (𝐴 ·ℎ 𝐶)) = 0ℎ ↔ (𝐴 ·ℎ 𝐵) = (𝐴 ·ℎ 𝐶))) |
| 20 | 9, 13, 19 | 3bitr3d 309 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → ((𝐴 = 0 ∨ (𝐵 −ℎ 𝐶) = 0ℎ) ↔ (𝐴 ·ℎ 𝐵) = (𝐴 ·ℎ 𝐶))) |
| 21 | 20 | 3adant1r 1178 | . 2 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → ((𝐴 = 0 ∨ (𝐵 −ℎ 𝐶) = 0ℎ) ↔ (𝐴 ·ℎ 𝐵) = (𝐴 ·ℎ 𝐶))) |
| 22 | 5, 7, 21 | 3bitr3rd 310 | 1 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) ∧ 𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ) → ((𝐴 ·ℎ 𝐵) = (𝐴 ·ℎ 𝐶) ↔ 𝐵 = 𝐶)) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ↔ wb 206 ∧ wa 395 ∨ wo 847 ∧ w3a 1086 = wceq 1540 ∈ wcel 2109 ≠ wne 2926 (class class class)co 7390 ℂcc 11073 0cc0 11075 ℋchba 30855 ·ℎ csm 30857 0ℎc0v 30860 −ℎ cmv 30861 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2702 ax-sep 5254 ax-nul 5264 ax-pow 5323 ax-pr 5390 ax-un 7714 ax-resscn 11132 ax-1cn 11133 ax-icn 11134 ax-addcl 11135 ax-addrcl 11136 ax-mulcl 11137 ax-mulrcl 11138 ax-mulcom 11139 ax-addass 11140 ax-mulass 11141 ax-distr 11142 ax-i2m1 11143 ax-1ne0 11144 ax-1rid 11145 ax-rnegex 11146 ax-rrecex 11147 ax-cnre 11148 ax-pre-lttri 11149 ax-pre-lttrn 11150 ax-pre-ltadd 11151 ax-pre-mulgt0 11152 ax-hfvadd 30936 ax-hvcom 30937 ax-hvass 30938 ax-hv0cl 30939 ax-hvaddid 30940 ax-hfvmul 30941 ax-hvmulid 30942 ax-hvmulass 30943 ax-hvdistr1 30944 ax-hvdistr2 30945 ax-hvmul0 30946 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2534 df-eu 2563 df-clab 2709 df-cleq 2722 df-clel 2804 df-nfc 2879 df-ne 2927 df-nel 3031 df-ral 3046 df-rex 3055 df-rmo 3356 df-reu 3357 df-rab 3409 df-v 3452 df-sbc 3757 df-csb 3866 df-dif 3920 df-un 3922 df-in 3924 df-ss 3934 df-nul 4300 df-if 4492 df-pw 4568 df-sn 4593 df-pr 4595 df-op 4599 df-uni 4875 df-iun 4960 df-br 5111 df-opab 5173 df-mpt 5192 df-id 5536 df-po 5549 df-so 5550 df-xp 5647 df-rel 5648 df-cnv 5649 df-co 5650 df-dm 5651 df-rn 5652 df-res 5653 df-ima 5654 df-iota 6467 df-fun 6516 df-fn 6517 df-f 6518 df-f1 6519 df-fo 6520 df-f1o 6521 df-fv 6522 df-riota 7347 df-ov 7393 df-oprab 7394 df-mpo 7395 df-er 8674 df-en 8922 df-dom 8923 df-sdom 8924 df-pnf 11217 df-mnf 11218 df-xr 11219 df-ltxr 11220 df-le 11221 df-sub 11414 df-neg 11415 df-div 11843 df-hvsub 30907 |
| This theorem is referenced by: hvsubcan 31010 hvsubcan2 31011 |
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