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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 11053 | . . 3 ⊢ (2 · 1) = 2 | |
2 | 1 | oveq2i 6560 | . 2 ⊢ ((2 · (2 · 𝐴)) + (2 · 1)) = ((2 · (2 · 𝐴)) + 2) |
3 | 2cn 10968 | . . 3 ⊢ 2 ∈ ℂ | |
4 | decbin.1 | . . . . 5 ⊢ 𝐴 ∈ ℕ0 | |
5 | 4 | nn0cni 11181 | . . . 4 ⊢ 𝐴 ∈ ℂ |
6 | 3, 5 | mulcli 9924 | . . 3 ⊢ (2 · 𝐴) ∈ ℂ |
7 | ax-1cn 9873 | . . 3 ⊢ 1 ∈ ℂ | |
8 | 3, 6, 7 | adddii 9929 | . 2 ⊢ (2 · ((2 · 𝐴) + 1)) = ((2 · (2 · 𝐴)) + (2 · 1)) |
9 | 4 | decbin0 11558 | . . 3 ⊢ (4 · 𝐴) = (2 · (2 · 𝐴)) |
10 | 9 | oveq1i 6559 | . 2 ⊢ ((4 · 𝐴) + 2) = ((2 · (2 · 𝐴)) + 2) |
11 | 2, 8, 10 | 3eqtr4ri 2643 | 1 ⊢ ((4 · 𝐴) + 2) = (2 · ((2 · 𝐴) + 1)) |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1475 ∈ wcel 1977 (class class class)co 6549 1c1 9816 + caddc 9818 · cmul 9820 2c2 10947 4c4 10949 ℕ0cn0 11169 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-8 1979 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-sep 4709 ax-nul 4717 ax-pow 4769 ax-pr 4833 ax-un 6847 ax-resscn 9872 ax-1cn 9873 ax-icn 9874 ax-addcl 9875 ax-addrcl 9876 ax-mulcl 9877 ax-mulrcl 9878 ax-mulcom 9879 ax-addass 9880 ax-mulass 9881 ax-distr 9882 ax-i2m1 9883 ax-1ne0 9884 ax-1rid 9885 ax-rnegex 9886 ax-rrecex 9887 ax-cnre 9888 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3or 1032 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-eu 2462 df-mo 2463 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-ral 2901 df-rex 2902 df-reu 2903 df-rab 2905 df-v 3175 df-sbc 3403 df-csb 3500 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-pss 3556 df-nul 3875 df-if 4037 df-pw 4110 df-sn 4126 df-pr 4128 df-tp 4130 df-op 4132 df-uni 4373 df-iun 4457 df-br 4584 df-opab 4644 df-mpt 4645 df-tr 4681 df-eprel 4949 df-id 4953 df-po 4959 df-so 4960 df-fr 4997 df-we 4999 df-xp 5044 df-rel 5045 df-cnv 5046 df-co 5047 df-dm 5048 df-rn 5049 df-res 5050 df-ima 5051 df-pred 5597 df-ord 5643 df-on 5644 df-lim 5645 df-suc 5646 df-iota 5768 df-fun 5806 df-fn 5807 df-f 5808 df-f1 5809 df-fo 5810 df-f1o 5811 df-fv 5812 df-ov 6552 df-om 6958 df-wrecs 7294 df-recs 7355 df-rdg 7393 df-nn 10898 df-2 10956 df-3 10957 df-4 10958 df-n0 11170 |
This theorem is referenced by: decbin3 11560 |
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