| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > peano2uz | GIF version | ||
| Description: Second Peano postulate for an upper set of integers. (Contributed by NM, 7-Sep-2005.) |
| Ref | Expression |
|---|---|
| peano2uz | ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → (𝑁 + 1) ∈ (ℤ≥‘𝑀)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | simp1 1024 | . . 3 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝑀 ≤ 𝑁) → 𝑀 ∈ ℤ) | |
| 2 | peano2z 9612 | . . . 4 ⊢ (𝑁 ∈ ℤ → (𝑁 + 1) ∈ ℤ) | |
| 3 | 2 | 3ad2ant2 1046 | . . 3 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝑀 ≤ 𝑁) → (𝑁 + 1) ∈ ℤ) |
| 4 | zre 9580 | . . . 4 ⊢ (𝑀 ∈ ℤ → 𝑀 ∈ ℝ) | |
| 5 | zre 9580 | . . . . 5 ⊢ (𝑁 ∈ ℤ → 𝑁 ∈ ℝ) | |
| 6 | letrp1 9121 | . . . . 5 ⊢ ((𝑀 ∈ ℝ ∧ 𝑁 ∈ ℝ ∧ 𝑀 ≤ 𝑁) → 𝑀 ≤ (𝑁 + 1)) | |
| 7 | 5, 6 | syl3an2 1308 | . . . 4 ⊢ ((𝑀 ∈ ℝ ∧ 𝑁 ∈ ℤ ∧ 𝑀 ≤ 𝑁) → 𝑀 ≤ (𝑁 + 1)) |
| 8 | 4, 7 | syl3an1 1307 | . . 3 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝑀 ≤ 𝑁) → 𝑀 ≤ (𝑁 + 1)) |
| 9 | 1, 3, 8 | 3jca 1204 | . 2 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝑀 ≤ 𝑁) → (𝑀 ∈ ℤ ∧ (𝑁 + 1) ∈ ℤ ∧ 𝑀 ≤ (𝑁 + 1))) |
| 10 | eluz2 9858 | . 2 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) ↔ (𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝑀 ≤ 𝑁)) | |
| 11 | eluz2 9858 | . 2 ⊢ ((𝑁 + 1) ∈ (ℤ≥‘𝑀) ↔ (𝑀 ∈ ℤ ∧ (𝑁 + 1) ∈ ℤ ∧ 𝑀 ≤ (𝑁 + 1))) | |
| 12 | 9, 10, 11 | 3imtr4i 201 | 1 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → (𝑁 + 1) ∈ (ℤ≥‘𝑀)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ w3a 1005 ∈ wcel 2203 class class class wbr 4108 ‘cfv 5351 (class class class)co 6049 ℝcr 8125 1c1 8127 + caddc 8129 ≤ cle 8308 ℤcz 9576 ℤ≥cuz 9852 |
| 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-in1 619 ax-in2 620 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2205 ax-14 2206 ax-ext 2214 ax-sep 4227 ax-pow 4286 ax-pr 4321 ax-un 4553 ax-setind 4658 ax-cnex 8217 ax-resscn 8218 ax-1cn 8219 ax-1re 8220 ax-icn 8221 ax-addcl 8222 ax-addrcl 8223 ax-mulcl 8224 ax-addcom 8226 ax-addass 8228 ax-distr 8230 ax-i2m1 8231 ax-0lt1 8232 ax-0id 8234 ax-rnegex 8235 ax-cnre 8237 ax-pre-ltirr 8238 ax-pre-ltwlin 8239 ax-pre-lttrn 8240 ax-pre-ltadd 8242 |
| This theorem depends on definitions: df-bi 117 df-3or 1006 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1812 df-eu 2083 df-mo 2084 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-ne 2413 df-nel 2508 df-ral 2525 df-rex 2526 df-reu 2527 df-rab 2529 df-v 2814 df-sbc 3042 df-dif 3212 df-un 3214 df-in 3216 df-ss 3223 df-pw 3670 df-sn 3694 df-pr 3695 df-op 3697 df-uni 3914 df-int 3949 df-br 4109 df-opab 4171 df-mpt 4172 df-id 4413 df-xp 4754 df-rel 4755 df-cnv 4756 df-co 4757 df-dm 4758 df-rn 4759 df-res 4760 df-ima 4761 df-iota 5311 df-fun 5353 df-fn 5354 df-f 5355 df-fv 5359 df-riota 6002 df-ov 6052 df-oprab 6053 df-mpo 6054 df-pnf 8309 df-mnf 8310 df-xr 8311 df-ltxr 8312 df-le 8313 df-sub 8445 df-neg 8446 df-inn 9237 df-n0 9496 df-z 9577 df-uz 9853 |
| This theorem is referenced by: peano2uzs 9915 peano2uzr 9916 uzaddcl 9917 fzsplit 10384 fzssp1 10400 fzsuc 10402 fzpred 10403 fzp1ss 10406 fzp1elp1 10408 fztp 10411 fzneuz 10434 fzosplitsnm1 10553 fzofzp1 10571 fzosplitsn 10577 fzosplitpr 10578 fzostep1 10582 zsupcllemstep 10588 infssuzex 10592 frec2uzuzd 10763 frecuzrdgrrn 10769 frec2uzrdg 10770 frecuzrdgrcl 10771 frecuzrdgsuc 10775 frecuzrdgrclt 10776 frecuzrdgg 10777 frecuzrdgsuctlem 10784 frecfzen2 10788 fzfig 10791 uzsinds 10805 iseqovex 10819 seq3val 10821 seqvalcd 10822 seqf 10825 seq3p1 10826 seq3split 10849 seqsplitg 10850 seqf1oglem1 10880 seqf1oglem2 10881 seq3homo 10888 seq3z 10889 ser3ge0 10897 faclbnd3 11104 bcm1k 11121 seq3coll 11210 swrds1 11356 pfxccatpfx2 11425 clim2ser 12018 clim2ser2 12019 serf0 12033 fsump1 12102 fsump1i 12115 fsumparts 12152 isum1p 12174 cvgratnnlemmn 12207 mertenslemi1 12217 clim2prod 12221 clim2divap 12222 fprodntrivap 12266 fprodp1 12282 fprodabs 12298 pcfac 13044 gsumsplit1r 13603 gsumprval 13604 gsumfzconst 14050 gsumfzfsumlemm 14727 dvply2g 15623 |
| Copyright terms: Public domain | W3C validator |