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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 31574 | . . . 4 ⊢ ((𝐴 ∈ ℋ ∧ 𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ) → (𝐴 ·ih (𝐶 +ℎ 𝐷)) = ((𝐴 ·ih 𝐶) + (𝐴 ·ih 𝐷))) | |
| 5 | 1, 2, 3, 4 | mp3an 1490 | . . 3 ⊢ (𝐴 ·ih (𝐶 +ℎ 𝐷)) = ((𝐴 ·ih 𝐶) + (𝐴 ·ih 𝐷)) |
| 6 | normlem8.2 | . . . 4 ⊢ 𝐵 ∈ ℋ | |
| 7 | his7 31574 | . . . 4 ⊢ ((𝐵 ∈ ℋ ∧ 𝐶 ∈ ℋ ∧ 𝐷 ∈ ℋ) → (𝐵 ·ih (𝐶 +ℎ 𝐷)) = ((𝐵 ·ih 𝐶) + (𝐵 ·ih 𝐷))) | |
| 8 | 6, 2, 3, 7 | mp3an 1490 | . . 3 ⊢ (𝐵 ·ih (𝐶 +ℎ 𝐷)) = ((𝐵 ·ih 𝐶) + (𝐵 ·ih 𝐷)) |
| 9 | 5, 8 | oveq12i 7426 | . 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 31502 | . . 3 ⊢ (𝐶 +ℎ 𝐷) ∈ ℋ |
| 11 | ax-his2 31567 | . . 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 1490 | . 2 ⊢ ((𝐴 +ℎ 𝐵) ·ih (𝐶 +ℎ 𝐷)) = ((𝐴 ·ih (𝐶 +ℎ 𝐷)) + (𝐵 ·ih (𝐶 +ℎ 𝐷))) |
| 13 | 1, 2 | hicli 31565 | . . 3 ⊢ (𝐴 ·ih 𝐶) ∈ ℂ |
| 14 | 6, 3 | hicli 31565 | . . 3 ⊢ (𝐵 ·ih 𝐷) ∈ ℂ |
| 15 | 1, 3 | hicli 31565 | . . 3 ⊢ (𝐴 ·ih 𝐷) ∈ ℂ |
| 16 | 6, 2 | hicli 31565 | . . 3 ⊢ (𝐵 ·ih 𝐶) ∈ ℂ |
| 17 | 13, 14, 15, 16 | add42i 11463 | . 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 2793 | 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 |
| This proof depends on syntax axioms: = wceq 1570 ∈ wcel 2145 (class class class)co 7414 + caddc 11130 ℋchba 31403 +ℎ cva 31404 ·ih csp 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 7737 ax-resscn 11184 ax-1cn 11185 ax-icn 11186 ax-addcl 11187 ax-addrcl 11188 ax-mulcl 11189 ax-mulrcl 11190 ax-mulcom 11191 ax-addass 11192 ax-mulass 11193 ax-distr 11194 ax-i2m1 11195 ax-1ne0 11196 ax-1rid 11197 ax-rnegex 11198 ax-rrecex 11199 ax-cnre 11200 ax-pre-lttri 11201 ax-pre-lttrn 11202 ax-pre-ltadd 11203 ax-pre-mulgt0 11204 ax-hfvadd 31484 ax-hfi 31563 ax-his1 31566 ax-his2 31567 |
| 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-pss 3919 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-tr 5213 df-id 5550 df-eprel 5555 df-po 5563 df-so 5564 df-fr 5608 df-we 5610 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-pred 6299 df-ord 6360 df-on 6361 df-lim 6362 df-suc 6363 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 7371 df-ov 7417 df-oprab 7418 df-mpo 7419 df-om 7864 df-2nd 7988 df-frecs 8281 df-wrecs 8312 df-recs 8361 df-rdg 8400 df-er 8699 df-en 8956 df-dom 8957 df-sdom 8958 df-pnf 11272 df-mnf 11273 df-xr 11274 df-ltxr 11275 df-le 11276 df-sub 11470 df-neg 11471 df-div 11899 df-nn 12261 df-2 12330 df-cj 15189 df-re 15190 df-im 15191 |
| This theorem is used by: normlem9 31602 norm-ii-i 31621 normpythi 31626 normpari 31638 polid2i 31641 |
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