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Mirrors > Home > MPE Home > Th. List > decbin2 | Structured version Visualization version GIF version |
Description: Decompose base 4 into base 2. (Contributed by Mario Carneiro, 18-Feb-2014.) |
Ref | Expression |
---|---|
decbin.1 | ⊢ 𝐴 ∈ ℕ0 |
Ref | Expression |
---|---|
decbin2 | ⊢ ((4 · 𝐴) + 2) = (2 · ((2 · 𝐴) + 1)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 2t1e2 12066 | . . 3 ⊢ (2 · 1) = 2 | |
2 | 1 | oveq2i 7266 | . 2 ⊢ ((2 · (2 · 𝐴)) + (2 · 1)) = ((2 · (2 · 𝐴)) + 2) |
3 | 2cn 11978 | . . 3 ⊢ 2 ∈ ℂ | |
4 | decbin.1 | . . . . 5 ⊢ 𝐴 ∈ ℕ0 | |
5 | 4 | nn0cni 12175 | . . . 4 ⊢ 𝐴 ∈ ℂ |
6 | 3, 5 | mulcli 10913 | . . 3 ⊢ (2 · 𝐴) ∈ ℂ |
7 | ax-1cn 10860 | . . 3 ⊢ 1 ∈ ℂ | |
8 | 3, 6, 7 | adddii 10918 | . 2 ⊢ (2 · ((2 · 𝐴) + 1)) = ((2 · (2 · 𝐴)) + (2 · 1)) |
9 | 4 | decbin0 12506 | . . 3 ⊢ (4 · 𝐴) = (2 · (2 · 𝐴)) |
10 | 9 | oveq1i 7265 | . 2 ⊢ ((4 · 𝐴) + 2) = ((2 · (2 · 𝐴)) + 2) |
11 | 2, 8, 10 | 3eqtr4ri 2777 | 1 ⊢ ((4 · 𝐴) + 2) = (2 · ((2 · 𝐴) + 1)) |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1539 ∈ wcel 2108 (class class class)co 7255 1c1 10803 + caddc 10805 · cmul 10807 2c2 11958 4c4 11960 ℕ0cn0 12163 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-sep 5218 ax-nul 5225 ax-pr 5347 ax-un 7566 ax-resscn 10859 ax-1cn 10860 ax-icn 10861 ax-addcl 10862 ax-mulcl 10864 ax-mulcom 10866 ax-addass 10867 ax-mulass 10868 ax-distr 10869 ax-i2m1 10870 ax-1rid 10872 ax-cnre 10875 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-ral 3068 df-rex 3069 df-reu 3070 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3902 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-tp 4563 df-op 4565 df-uni 4837 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-tr 5188 df-id 5480 df-eprel 5486 df-po 5494 df-so 5495 df-fr 5535 df-we 5537 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-pred 6191 df-ord 6254 df-on 6255 df-lim 6256 df-suc 6257 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-ov 7258 df-om 7688 df-2nd 7805 df-frecs 8068 df-wrecs 8099 df-recs 8173 df-rdg 8212 df-nn 11904 df-2 11966 df-3 11967 df-4 11968 df-n0 12164 |
This theorem is referenced by: decbin3 12508 |
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