![]() |
Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
|
Mirrors > Home > MPE Home > Th. List > elnn0 | Structured version Visualization version GIF version |
Description: Nonnegative integers expressed in terms of naturals and zero. (Contributed by Raph Levien, 10-Dec-2002.) |
Ref | Expression |
---|---|
elnn0 | ⊢ (𝐴 ∈ ℕ0 ↔ (𝐴 ∈ ℕ ∨ 𝐴 = 0)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-n0 11886 | . . 3 ⊢ ℕ0 = (ℕ ∪ {0}) | |
2 | 1 | eleq2i 2881 | . 2 ⊢ (𝐴 ∈ ℕ0 ↔ 𝐴 ∈ (ℕ ∪ {0})) |
3 | elun 4076 | . 2 ⊢ (𝐴 ∈ (ℕ ∪ {0}) ↔ (𝐴 ∈ ℕ ∨ 𝐴 ∈ {0})) | |
4 | c0ex 10624 | . . . 4 ⊢ 0 ∈ V | |
5 | 4 | elsn2 4564 | . . 3 ⊢ (𝐴 ∈ {0} ↔ 𝐴 = 0) |
6 | 5 | orbi2i 910 | . 2 ⊢ ((𝐴 ∈ ℕ ∨ 𝐴 ∈ {0}) ↔ (𝐴 ∈ ℕ ∨ 𝐴 = 0)) |
7 | 2, 3, 6 | 3bitri 300 | 1 ⊢ (𝐴 ∈ ℕ0 ↔ (𝐴 ∈ ℕ ∨ 𝐴 = 0)) |
Colors of variables: wff setvar class |
Syntax hints: ↔ wb 209 ∨ wo 844 = wceq 1538 ∈ wcel 2111 ∪ cun 3879 {csn 4525 0cc0 10526 ℕcn 11625 ℕ0cn0 11885 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-ext 2770 ax-1cn 10584 ax-icn 10585 ax-addcl 10586 ax-mulcl 10588 ax-i2m1 10594 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-ex 1782 df-sb 2070 df-clab 2777 df-cleq 2791 df-clel 2870 df-v 3443 df-un 3886 df-sn 4526 df-n0 11886 |
This theorem is referenced by: 0nn0 11900 nn0ge0 11910 nnnn0addcl 11915 nnm1nn0 11926 elnnnn0b 11929 nn0sub 11935 elnn0z 11982 elznn0nn 11983 elznn0 11984 elznn 11985 nn0lt10b 12032 nn0ind-raph 12070 nn0ledivnn 12490 expp1 13432 expneg 13433 expcllem 13436 znsqcld 13522 facp1 13634 faclbnd 13646 faclbnd3 13648 faclbnd4lem1 13649 faclbnd4lem3 13651 faclbnd4 13653 bcn1 13669 bcval5 13674 hashv01gt1 13701 hashnncl 13723 seqcoll2 13819 relexpsucl 14382 relexpsucr 14383 relexpcnv 14386 relexprelg 14389 relexpdmg 14393 relexprng 14397 relexpfld 14400 relexpaddg 14404 fz1f1o 15059 arisum 15207 arisum2 15208 pwdif 15215 geomulcvg 15224 fprodfac 15319 ef0lem 15424 nn0enne 15718 nn0o1gt2 15722 bezoutlem3 15879 dfgcd2 15884 mulgcd 15886 eucalgf 15917 eucalginv 15918 eucalglt 15919 prmdvdsexpr 16051 rpexp1i 16055 nn0gcdsq 16082 odzdvds 16122 pceq0 16197 fldivp1 16223 pockthg 16232 1arith 16253 4sqlem17 16287 4sqlem19 16289 vdwmc2 16305 vdwlem13 16319 0ram 16346 ram0 16348 ramz 16351 ramcl 16355 mulgnn0gsum 18226 mulgnn0p1 18231 mulgnn0subcl 18233 mulgneg 18238 mulgnn0z 18246 mulgnn0dir 18249 mulgnn0ass 18255 submmulg 18263 odcl 18656 mndodcongi 18663 oddvdsnn0 18664 odnncl 18665 oddvds 18667 dfod2 18683 odcl2 18684 gexcl 18697 gexdvds 18701 gexnnod 18705 sylow1lem1 18715 mulgnn0di 18939 torsubg 18967 ablfac1eu 19188 gzrngunitlem 20156 zringlpirlem3 20179 prmirredlem 20186 prmirred 20188 znf1o 20243 evlslem3 20752 dscmet 23179 dvexp2 24557 tdeglem4 24661 dgrnznn 24844 coefv0 24845 dgreq0 24862 dgrcolem2 24871 dvply1 24880 aaliou2 24936 radcnv0 25011 logfac 25192 logtayl 25251 cxpexp 25259 birthdaylem2 25538 harmonicbnd3 25593 sqf11 25724 ppiltx 25762 sqff1o 25767 lgsdir 25916 lgsabs1 25920 lgseisenlem1 25959 2sqlem7 26008 2sqblem 26015 2sqnn 26023 chebbnd1lem1 26053 xrsmulgzz 30712 ressmulgnn0 30718 nexple 31378 eulerpartlemsv2 31726 eulerpartlemv 31732 eulerpartlemb 31736 eulerpartlemf 31738 eulerpartlemgvv 31744 eulerpartlemgh 31746 fz0n 33075 bccolsum 33084 nn0prpw 33784 fsuppind 39456 negn0nposznnd 39476 nn0rppwr 39490 nn0expgcd 39492 fzsplit1nn0 39695 pell1qrgaplem 39814 monotoddzzfi 39883 jm2.22 39936 jm2.23 39937 rmydioph 39955 expdioph 39964 rp-isfinite6 40226 relexpss1d 40406 relexpmulg 40411 iunrelexpmin2 40413 relexp0a 40417 relexpxpmin 40418 relexpaddss 40419 wallispilem3 42709 etransclem24 42900 lighneallem3 44125 lighneallem4 44128 nn0o1gt2ALTV 44212 nn0oALTV 44214 ztprmneprm 44749 blennn0elnn 44991 blen1b 45002 nn0sumshdiglem1 45035 |
Copyright terms: Public domain | W3C validator |