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| Mirrors > Home > ILE Home > Th. List > decbin0 | Unicode version | ||
| Description: Decompose base 4 into base 2. (Contributed by Mario Carneiro, 18-Feb-2014.) |
| Ref | Expression |
|---|---|
| decbin.1 |
|
| Ref | Expression |
|---|---|
| decbin0 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2t2e4 9438 |
. . 3
| |
| 2 | 1 | oveq1i 6085 |
. 2
|
| 3 | 2cn 9354 |
. . 3
| |
| 4 | decbin.1 |
. . . 4
| |
| 5 | 4 | nn0cni 9554 |
. . 3
|
| 6 | 3, 3, 5 | mulassi 8325 |
. 2
|
| 7 | 2, 6 | eqtr3i 2261 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 ax-sep 4244 ax-cnex 8260 ax-resscn 8261 ax-1cn 8262 ax-1re 8263 ax-icn 8264 ax-addcl 8265 ax-addrcl 8266 ax-mulcl 8267 ax-mulcom 8270 ax-addass 8271 ax-mulass 8272 ax-distr 8273 ax-1rid 8276 ax-rnegex 8278 ax-cnre 8280 |
| This theorem depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-v 2823 df-un 3224 df-in 3226 df-ss 3233 df-sn 3711 df-pr 3712 df-op 3714 df-uni 3931 df-int 3966 df-br 4126 df-iota 5332 df-fv 5380 df-ov 6078 df-inn 9284 df-2 9342 df-3 9343 df-4 9344 df-n0 9543 |
| This theorem is referenced by: decbin2 9896 |
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