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| Mirrors > Home > HSE Home > Th. List > normlem8 | Structured version Visualization version GIF version | ||
| Description: Lemma used to derive properties of norm. (Contributed by NM, 30-Jun-2005.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| normlem8.1 | ⊢ 𝐴 ∈ ℋ |
| normlem8.2 | ⊢ 𝐵 ∈ ℋ |
| normlem8.3 | ⊢ 𝐶 ∈ ℋ |
| normlem8.4 | ⊢ 𝐷 ∈ ℋ |
| Ref | Expression |
|---|---|
| normlem8 | ⊢ ((𝐴 +ℎ 𝐵) ·ih (𝐶 +ℎ 𝐷)) = (((𝐴 ·ih 𝐶) + (𝐵 ·ih 𝐷)) + ((𝐴 ·ih 𝐷) + (𝐵 ·ih 𝐶))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | normlem8.1 | . . . 4 ⊢ 𝐴 ∈ ℋ | |
| 2 | normlem8.3 | . . . 4 ⊢ 𝐶 ∈ ℋ | |
| 3 | normlem8.4 | . . . 4 ⊢ 𝐷 ∈ ℋ | |
| 4 | his7 31294 | . . . 4 ⊢ ((𝐴 ∈ ℋ ∧ 𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ) → (𝐴 ·ih (𝐶 +ℎ 𝐷)) = ((𝐴 ·ih 𝐶) + (𝐴 ·ih 𝐷))) | |
| 5 | 1, 2, 3, 4 | mp3an 1483 | . . 3 ⊢ (𝐴 ·ih (𝐶 +ℎ 𝐷)) = ((𝐴 ·ih 𝐶) + (𝐴 ·ih 𝐷)) |
| 6 | normlem8.2 | . . . 4 ⊢ 𝐵 ∈ ℋ | |
| 7 | his7 31294 | . . . 4 ⊢ ((𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ) → (𝐵 ·ih (𝐶 +ℎ 𝐷)) = ((𝐵 ·ih 𝐶) + (𝐵 ·ih 𝐷))) | |
| 8 | 6, 2, 3, 7 | mp3an 1483 | . . 3 ⊢ (𝐵 ·ih (𝐶 +ℎ 𝐷)) = ((𝐵 ·ih 𝐶) + (𝐵 ·ih 𝐷)) |
| 9 | 5, 8 | oveq12i 7409 | . 2 ⊢ ((𝐴 ·ih (𝐶 +ℎ 𝐷)) + (𝐵 ·ih (𝐶 +ℎ 𝐷))) = (((𝐴 ·ih 𝐶) + (𝐴 ·ih 𝐷)) + ((𝐵 ·ih 𝐶) + (𝐵 ·ih 𝐷))) |
| 10 | 2, 3 | hvaddcli 31222 | . . 3 ⊢ (𝐶 +ℎ 𝐷) ∈ ℋ |
| 11 | ax-his2 31287 | . . 3 ⊢ ((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ ∧ (𝐶 +ℎ 𝐷) ∈ ℋ) → ((𝐴 +ℎ 𝐵) ·ih (𝐶 +ℎ 𝐷)) = ((𝐴 ·ih (𝐶 +ℎ 𝐷)) + (𝐵 ·ih (𝐶 +ℎ 𝐷)))) | |
| 12 | 1, 6, 10, 11 | mp3an 1483 | . 2 ⊢ ((𝐴 +ℎ 𝐵) ·ih (𝐶 +ℎ 𝐷)) = ((𝐴 ·ih (𝐶 +ℎ 𝐷)) + (𝐵 ·ih (𝐶 +ℎ 𝐷))) |
| 13 | 1, 2 | hicli 31285 | . . 3 ⊢ (𝐴 ·ih 𝐶) ∈ ℂ |
| 14 | 6, 3 | hicli 31285 | . . 3 ⊢ (𝐵 ·ih 𝐷) ∈ ℂ |
| 15 | 1, 3 | hicli 31285 | . . 3 ⊢ (𝐴 ·ih 𝐷) ∈ ℂ |
| 16 | 6, 2 | hicli 31285 | . . 3 ⊢ (𝐵 ·ih 𝐶) ∈ ℂ |
| 17 | 13, 14, 15, 16 | add42i 11410 | . 2 ⊢ (((𝐴 ·ih 𝐶) + (𝐵 ·ih 𝐷)) + ((𝐴 ·ih 𝐷) + (𝐵 ·ih 𝐶))) = (((𝐴 ·ih 𝐶) + (𝐴 ·ih 𝐷)) + ((𝐵 ·ih 𝐶) + (𝐵 ·ih 𝐷))) |
| 18 | 9, 12, 17 | 3eqtr4i 2796 | 1 ⊢ ((𝐴 +ℎ 𝐵) ·ih (𝐶 +ℎ 𝐷)) = (((𝐴 ·ih 𝐶) + (𝐵 ·ih 𝐷)) + ((𝐴 ·ih 𝐷) + (𝐵 ·ih 𝐶))) |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1561 ∈ wcel 2143 (class class class)co 7397 + caddc 11077 ℋchba 31123 +ℎ cva 31124 ·ih csp 31126 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1816 ax-4 1830 ax-5 1931 ax-6 1988 ax-7 2029 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-sep 5247 ax-nul 5257 ax-pow 5323 ax-pr 5391 ax-un 7719 ax-resscn 11131 ax-1cn 11132 ax-icn 11133 ax-addcl 11134 ax-addrcl 11135 ax-mulcl 11136 ax-mulrcl 11137 ax-mulcom 11138 ax-addass 11139 ax-mulass 11140 ax-distr 11141 ax-i2m1 11142 ax-1ne0 11143 ax-1rid 11144 ax-rnegex 11145 ax-rrecex 11146 ax-cnre 11147 ax-pre-lttri 11148 ax-pre-lttrn 11149 ax-pre-ltadd 11150 ax-pre-mulgt0 11151 ax-hfvadd 31204 ax-hfi 31283 ax-his1 31286 ax-his2 31287 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1100 df-3an 1101 df-tru 1564 df-fal 1574 df-ex 1801 df-nf 1805 df-sb 2092 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-nel 3063 df-ral 3078 df-rex 3088 df-rmo 3368 df-reu 3369 df-rab 3416 df-v 3457 df-sbc 3746 df-csb 3854 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-pss 3925 df-nul 4287 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-iun 4952 df-br 5102 df-opab 5164 df-mpt 5183 df-tr 5209 df-id 5543 df-eprel 5548 df-po 5556 df-so 5557 df-fr 5601 df-we 5603 df-xp 5654 df-rel 5655 df-cnv 5656 df-co 5657 df-dm 5658 df-rn 5659 df-res 5660 df-ima 5661 df-pred 6289 df-ord 6350 df-on 6351 df-lim 6352 df-suc 6353 df-iota 6478 df-fun 6524 df-fn 6525 df-f 6526 df-f1 6527 df-fo 6528 df-f1o 6529 df-fv 6530 df-riota 7354 df-ov 7400 df-oprab 7401 df-mpo 7402 df-om 7848 df-2nd 7972 df-frecs 8263 df-wrecs 8294 df-recs 8343 df-rdg 8382 df-er 8679 df-en 8929 df-dom 8930 df-sdom 8931 df-pnf 11219 df-mnf 11220 df-xr 11221 df-ltxr 11222 df-le 11223 df-sub 11417 df-neg 11418 df-div 11846 df-nn 12212 df-2 12281 df-cj 15127 df-re 15128 df-im 15129 |
| This theorem is referenced by: normlem9 31322 norm-ii-i 31341 normpythi 31346 normpari 31358 polid2i 31361 |
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