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Mirrors > Home > MPE Home > Th. List > flge0nn0 | Structured version Visualization version GIF version |
Description: The floor of a number greater than or equal to 0 is a nonnegative integer. (Contributed by NM, 26-Apr-2005.) |
Ref | Expression |
---|---|
flge0nn0 | ⊢ ((𝐴 ∈ ℝ ∧ 0 ≤ 𝐴) → (⌊‘𝐴) ∈ ℕ0) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | flcl 13515 | . . 3 ⊢ (𝐴 ∈ ℝ → (⌊‘𝐴) ∈ ℤ) | |
2 | 1 | adantr 481 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 0 ≤ 𝐴) → (⌊‘𝐴) ∈ ℤ) |
3 | 0z 12330 | . . . 4 ⊢ 0 ∈ ℤ | |
4 | flge 13525 | . . . 4 ⊢ ((𝐴 ∈ ℝ ∧ 0 ∈ ℤ) → (0 ≤ 𝐴 ↔ 0 ≤ (⌊‘𝐴))) | |
5 | 3, 4 | mpan2 688 | . . 3 ⊢ (𝐴 ∈ ℝ → (0 ≤ 𝐴 ↔ 0 ≤ (⌊‘𝐴))) |
6 | 5 | biimpa 477 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 0 ≤ 𝐴) → 0 ≤ (⌊‘𝐴)) |
7 | elnn0z 12332 | . 2 ⊢ ((⌊‘𝐴) ∈ ℕ0 ↔ ((⌊‘𝐴) ∈ ℤ ∧ 0 ≤ (⌊‘𝐴))) | |
8 | 2, 6, 7 | sylanbrc 583 | 1 ⊢ ((𝐴 ∈ ℝ ∧ 0 ≤ 𝐴) → (⌊‘𝐴) ∈ ℕ0) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 396 ∈ wcel 2106 class class class wbr 5074 ‘cfv 6433 ℝcr 10870 0cc0 10871 ≤ cle 11010 ℕ0cn0 12233 ℤcz 12319 ⌊cfl 13510 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 ax-cnex 10927 ax-resscn 10928 ax-1cn 10929 ax-icn 10930 ax-addcl 10931 ax-addrcl 10932 ax-mulcl 10933 ax-mulrcl 10934 ax-mulcom 10935 ax-addass 10936 ax-mulass 10937 ax-distr 10938 ax-i2m1 10939 ax-1ne0 10940 ax-1rid 10941 ax-rnegex 10942 ax-rrecex 10943 ax-cnre 10944 ax-pre-lttri 10945 ax-pre-lttrn 10946 ax-pre-ltadd 10947 ax-pre-mulgt0 10948 ax-pre-sup 10949 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-nel 3050 df-ral 3069 df-rex 3070 df-rmo 3071 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-pss 3906 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4840 df-iun 4926 df-br 5075 df-opab 5137 df-mpt 5158 df-tr 5192 df-id 5489 df-eprel 5495 df-po 5503 df-so 5504 df-fr 5544 df-we 5546 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-pred 6202 df-ord 6269 df-on 6270 df-lim 6271 df-suc 6272 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-riota 7232 df-ov 7278 df-oprab 7279 df-mpo 7280 df-om 7713 df-2nd 7832 df-frecs 8097 df-wrecs 8128 df-recs 8202 df-rdg 8241 df-er 8498 df-en 8734 df-dom 8735 df-sdom 8736 df-sup 9201 df-inf 9202 df-pnf 11011 df-mnf 11012 df-xr 11013 df-ltxr 11014 df-le 11015 df-sub 11207 df-neg 11208 df-nn 11974 df-n0 12234 df-z 12320 df-uz 12583 df-fl 13512 |
This theorem is referenced by: fldivnn0 13542 expnbnd 13947 facavg 14015 o1fsum 15525 efcllem 15787 odzdvds 16496 prmreclem3 16619 1arith 16628 odmodnn0 19148 lebnumii 24129 lmnn 24427 vitalilem4 24775 mbfi1fseqlem1 24880 mbfi1fseqlem3 24882 mbfi1fseqlem5 24884 harmoniclbnd 26158 harmonicbnd4 26160 fsumharmonic 26161 ppiltx 26326 logfac2 26365 chpval2 26366 chpchtsum 26367 chpub 26368 logfaclbnd 26370 logfacbnd3 26371 logfacrlim 26372 bposlem1 26432 gausslemma2dlem0d 26507 lgsquadlem2 26529 chtppilimlem1 26621 vmadivsum 26630 rpvmasumlem 26635 dchrisumlema 26636 dchrisumlem1 26637 dchrisum0lem1b 26663 dchrisum0lem1 26664 dchrisum0lem2a 26665 dchrisum0lem3 26667 mudivsum 26678 mulogsumlem 26679 selberglem2 26694 selberg2lem 26698 pntrsumo1 26713 pntrlog2bndlem2 26726 pntrlog2bndlem4 26728 pntrlog2bndlem6a 26730 pntpbnd1 26734 pntpbnd2 26735 pntlemg 26746 pntlemj 26751 pntlemf 26753 ostth2lem2 26782 ostth2lem3 26783 minvecolem3 29238 minvecolem4 29242 itg2addnclem2 35829 irrapxlem4 40647 irrapxlem5 40648 recnnltrp 42916 rpgtrecnn 42919 ioodvbdlimc1lem2 43473 ioodvbdlimc2lem 43475 fourierdlem47 43694 vonioolem1 44218 fllog2 45914 blennnelnn 45922 dignnld 45949 dignn0flhalf 45964 |
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