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Mirrors > Home > HSE Home > Th. List > hvaddcani | Structured version Visualization version GIF version |
Description: Cancellation law for vector addition. (Contributed by NM, 11-Sep-1999.) (New usage is discouraged.) |
Ref | Expression |
---|---|
hvnegdi.1 | ⊢ 𝐴 ∈ ℋ |
hvnegdi.2 | ⊢ 𝐵 ∈ ℋ |
hvaddcan.3 | ⊢ 𝐶 ∈ ℋ |
Ref | Expression |
---|---|
hvaddcani | ⊢ ((𝐴 +ℎ 𝐵) = (𝐴 +ℎ 𝐶) ↔ 𝐵 = 𝐶) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | oveq1 7363 | . . 3 ⊢ ((𝐴 +ℎ 𝐵) = (𝐴 +ℎ 𝐶) → ((𝐴 +ℎ 𝐵) +ℎ (-1 ·ℎ 𝐴)) = ((𝐴 +ℎ 𝐶) +ℎ (-1 ·ℎ 𝐴))) | |
2 | hvnegdi.1 | . . . . 5 ⊢ 𝐴 ∈ ℋ | |
3 | hvnegdi.2 | . . . . 5 ⊢ 𝐵 ∈ ℋ | |
4 | neg1cn 12266 | . . . . . 6 ⊢ -1 ∈ ℂ | |
5 | 4, 2 | hvmulcli 29903 | . . . . 5 ⊢ (-1 ·ℎ 𝐴) ∈ ℋ |
6 | 2, 3, 5 | hvadd32i 29943 | . . . 4 ⊢ ((𝐴 +ℎ 𝐵) +ℎ (-1 ·ℎ 𝐴)) = ((𝐴 +ℎ (-1 ·ℎ 𝐴)) +ℎ 𝐵) |
7 | 2 | hvnegidi 29919 | . . . . 5 ⊢ (𝐴 +ℎ (-1 ·ℎ 𝐴)) = 0ℎ |
8 | 7 | oveq1i 7366 | . . . 4 ⊢ ((𝐴 +ℎ (-1 ·ℎ 𝐴)) +ℎ 𝐵) = (0ℎ +ℎ 𝐵) |
9 | 3 | hvaddid2i 29918 | . . . 4 ⊢ (0ℎ +ℎ 𝐵) = 𝐵 |
10 | 6, 8, 9 | 3eqtri 2768 | . . 3 ⊢ ((𝐴 +ℎ 𝐵) +ℎ (-1 ·ℎ 𝐴)) = 𝐵 |
11 | hvaddcan.3 | . . . . 5 ⊢ 𝐶 ∈ ℋ | |
12 | 2, 11, 5 | hvadd32i 29943 | . . . 4 ⊢ ((𝐴 +ℎ 𝐶) +ℎ (-1 ·ℎ 𝐴)) = ((𝐴 +ℎ (-1 ·ℎ 𝐴)) +ℎ 𝐶) |
13 | 7 | oveq1i 7366 | . . . 4 ⊢ ((𝐴 +ℎ (-1 ·ℎ 𝐴)) +ℎ 𝐶) = (0ℎ +ℎ 𝐶) |
14 | 11 | hvaddid2i 29918 | . . . 4 ⊢ (0ℎ +ℎ 𝐶) = 𝐶 |
15 | 12, 13, 14 | 3eqtri 2768 | . . 3 ⊢ ((𝐴 +ℎ 𝐶) +ℎ (-1 ·ℎ 𝐴)) = 𝐶 |
16 | 1, 10, 15 | 3eqtr3g 2799 | . 2 ⊢ ((𝐴 +ℎ 𝐵) = (𝐴 +ℎ 𝐶) → 𝐵 = 𝐶) |
17 | oveq2 7364 | . 2 ⊢ (𝐵 = 𝐶 → (𝐴 +ℎ 𝐵) = (𝐴 +ℎ 𝐶)) | |
18 | 16, 17 | impbii 208 | 1 ⊢ ((𝐴 +ℎ 𝐵) = (𝐴 +ℎ 𝐶) ↔ 𝐵 = 𝐶) |
Colors of variables: wff setvar class |
Syntax hints: ↔ wb 205 = wceq 1541 ∈ wcel 2106 (class class class)co 7356 1c1 11051 -cneg 11385 ℋchba 29808 +ℎ cva 29809 ·ℎ csm 29810 0ℎc0v 29813 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2707 ax-sep 5256 ax-nul 5263 ax-pow 5320 ax-pr 5384 ax-un 7671 ax-resscn 11107 ax-1cn 11108 ax-icn 11109 ax-addcl 11110 ax-addrcl 11111 ax-mulcl 11112 ax-mulrcl 11113 ax-mulcom 11114 ax-addass 11115 ax-mulass 11116 ax-distr 11117 ax-i2m1 11118 ax-1ne0 11119 ax-1rid 11120 ax-rnegex 11121 ax-rrecex 11122 ax-cnre 11123 ax-pre-lttri 11124 ax-pre-lttrn 11125 ax-pre-ltadd 11126 ax-hvcom 29890 ax-hvass 29891 ax-hv0cl 29892 ax-hvaddid 29893 ax-hfvmul 29894 ax-hvmulid 29895 ax-hvdistr2 29898 ax-hvmul0 29899 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2538 df-eu 2567 df-clab 2714 df-cleq 2728 df-clel 2814 df-nfc 2889 df-ne 2944 df-nel 3050 df-ral 3065 df-rex 3074 df-reu 3354 df-rab 3408 df-v 3447 df-sbc 3740 df-csb 3856 df-dif 3913 df-un 3915 df-in 3917 df-ss 3927 df-nul 4283 df-if 4487 df-pw 4562 df-sn 4587 df-pr 4589 df-op 4593 df-uni 4866 df-iun 4956 df-br 5106 df-opab 5168 df-mpt 5189 df-id 5531 df-po 5545 df-so 5546 df-xp 5639 df-rel 5640 df-cnv 5641 df-co 5642 df-dm 5643 df-rn 5644 df-res 5645 df-ima 5646 df-iota 6448 df-fun 6498 df-fn 6499 df-f 6500 df-f1 6501 df-fo 6502 df-f1o 6503 df-fv 6504 df-riota 7312 df-ov 7359 df-oprab 7360 df-mpo 7361 df-er 8647 df-en 8883 df-dom 8884 df-sdom 8885 df-pnf 11190 df-mnf 11191 df-ltxr 11193 df-sub 11386 df-neg 11387 df-hvsub 29860 |
This theorem is referenced by: hvsubaddi 29955 hvaddcan 29959 |
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