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| Mirrors > Home > MPE Home > Th. List > m1bits | Structured version Visualization version GIF version | ||
| Description: The bits of negative one. (Contributed by Mario Carneiro, 5-Sep-2016.) |
| Ref | Expression |
|---|---|
| m1bits | ⊢ (bits‘ -1) = ℕ0 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0z 12731 | . . 3 ⊢ 0 ∈ ℤ | |
| 2 | bitscmp 16637 | . . 3 ⊢ (0 ∈ ℤ → (ℕ0 ∖ (bits‘0)) = (bits‘( -0 − 1))) | |
| 3 | 1, 2 | ax-mp 5 | . 2 ⊢ (ℕ0 ∖ (bits‘0)) = (bits‘( -0 − 1)) |
| 4 | 0bits 16638 | . . . 4 ⊢ (bits‘0) = ∅ | |
| 5 | 4 | difeq2i 4063 | . . 3 ⊢ (ℕ0 ∖ (bits‘0)) = (ℕ0 ∖ ∅) |
| 6 | dif0 4330 | . . 3 ⊢ (ℕ0 ∖ ∅) = ℕ0 | |
| 7 | 5, 6 | eqtri 2786 | . 2 ⊢ (ℕ0 ∖ (bits‘0)) = ℕ0 |
| 8 | neg0 11631 | . . . . 5 ⊢ -0 = 0 | |
| 9 | 8 | oveq1i 7453 | . . . 4 ⊢ ( -0 − 1) = (0 − 1) |
| 10 | df-neg 11571 | . . . 4 ⊢ -1 = (0 − 1) | |
| 11 | 9, 10 | eqtr4i 2789 | . . 3 ⊢ ( -0 − 1) = -1 |
| 12 | 11 | fveq2i 6911 | . 2 ⊢ (bits‘( -0 − 1)) = (bits‘ -1) |
| 13 | 3, 7, 12 | 3eqtr3ri 2795 | 1 ⊢ (bits‘ -1) = ℕ0 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 ∈ wcel 2147 ∖ cdif 4048 ∅c0 4281 ‘cfv 6558 (class class class)co 7443 0cc0 11227 1c1 11228 − cmin 11568 -cneg 11569 ℕ0cn0 12633 ℤcz 12720 bitscbits 16618 |
| 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 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-sep 5252 ax-nul 5263 ax-pow 5331 ax-pr 5395 ax-un 7775 ax-cnex 11283 ax-resscn 11284 ax-1cn 11285 ax-icn 11286 ax-addcl 11287 ax-addrcl 11288 ax-mulcl 11289 ax-mulrcl 11290 ax-mulcom 11291 ax-addass 11292 ax-mulass 11293 ax-distr 11294 ax-i2m1 11295 ax-1ne0 11296 ax-1rid 11297 ax-rnegex 11298 ax-rrecex 11299 ax-cnre 11300 ax-pre-lttri 11301 ax-pre-lttrn 11302 ax-pre-ltadd 11303 ax-pre-mulgt0 11304 ax-pre-sup 11305 |
| 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 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-nel 3066 df-ral 3081 df-rex 3091 df-rmo 3369 df-reu 3370 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-pss 4017 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4839 df-uni 4871 df-iun 4956 df-br 5107 df-opab 5171 df-mpt 5190 df-tr 5216 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 6322 df-ord 6383 df-on 6384 df-lim 6385 df-suc 6386 df-iota 6512 df-fun 6560 df-fn 6561 df-f 6562 df-f1 6563 df-fo 6564 df-f1o 6565 df-fv 6566 df-riota 7400 df-ov 7446 df-oprab 7447 df-mpo 7448 df-om 7902 df-1st 8025 df-2nd 8026 df-frecs 8327 df-wrecs 8358 df-recs 8407 df-rdg 8446 df-er 8745 df-en 9002 df-dom 9003 df-sdom 9004 df-sup 9461 df-inf 9462 df-pnf 11372 df-mnf 11373 df-xr 11374 df-ltxr 11375 df-le 11376 df-sub 11570 df-neg 11571 df-div 12001 df-nn 12363 df-2 12432 df-n0 12634 df-z 12721 df-uz 12993 df-rp 13148 df-fz 13667 df-fzo 13816 df-fl 13959 df-seq 14172 df-exp 14232 df-dvds 16452 df-bits 16621 |
| This theorem is used by: (None) |
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