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| Mirrors > Home > MPE Home > Th. List > zltlem1 | Structured version Visualization version GIF version | ||
| Description: Integer ordering relation. (Contributed by NM, 13-Nov-2004.) |
| Ref | Expression |
|---|---|
| zltlem1 | ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝑀 < 𝑁 ↔ 𝑀 ≤ (𝑁 − 1))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | peano2zm 12708 | . . 3 ⊢ (𝑁 ∈ ℤ → (𝑁 − 1) ∈ ℤ) | |
| 2 | zleltp1 12716 | . . 3 ⊢ ((𝑀 ∈ ℤ ∧ (𝑁 − 1) ∈ ℤ) → (𝑀 ≤ (𝑁 − 1) ↔ 𝑀 < ((𝑁 − 1) + 1))) | |
| 3 | 1, 2 | sylan2 605 | . 2 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝑀 ≤ (𝑁 − 1) ↔ 𝑀 < ((𝑁 − 1) + 1))) |
| 4 | zcn 12667 | . . . . 5 ⊢ (𝑁 ∈ ℤ → 𝑁 ∈ ℂ) | |
| 5 | ax-1cn 11229 | . . . . 5 ⊢ 1 ∈ ℂ | |
| 6 | npcan 11537 | . . . . 5 ⊢ ((𝑁 ∈ ℂ ∧ 1 ∈ ℂ) → ((𝑁 − 1) + 1) = 𝑁) | |
| 7 | 4, 5, 6 | sylancl 598 | . . . 4 ⊢ (𝑁 ∈ ℤ → ((𝑁 − 1) + 1) = 𝑁) |
| 8 | 7 | adantl 487 | . . 3 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → ((𝑁 − 1) + 1) = 𝑁) |
| 9 | 8 | breq2d 5114 | . 2 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝑀 < ((𝑁 − 1) + 1) ↔ 𝑀 < 𝑁)) |
| 10 | 3, 9 | bitr2d 283 | 1 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝑀 < 𝑁 ↔ 𝑀 ≤ (𝑁 − 1))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 401 = wceq 1570 ∈ wcel 2145 class class class wbr 5102 (class class class)co 7408 ℂcc 11169 1c1 11172 + caddc 11174 < clt 11314 ≤ cle 11315 − cmin 11512 ℤcz 12662 |
| 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 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7734 ax-resscn 11228 ax-1cn 11229 ax-icn 11230 ax-addcl 11231 ax-addrcl 11232 ax-mulcl 11233 ax-mulrcl 11234 ax-mulcom 11235 ax-addass 11236 ax-mulass 11237 ax-distr 11238 ax-i2m1 11239 ax-1ne0 11240 ax-1rid 11241 ax-rnegex 11242 ax-rrecex 11243 ax-cnre 11244 ax-pre-lttri 11245 ax-pre-lttrn 11246 ax-pre-ltadd 11247 ax-pre-mulgt0 11248 |
| 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 2100 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3847 df-dif 3901 df-un 3903 df-in 3905 df-ss 3915 df-pss 3918 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5542 df-eprel 5547 df-po 5555 df-so 5556 df-fr 5600 df-we 5602 df-xp 5653 df-rel 5654 df-cnv 5655 df-co 5656 df-dm 5657 df-rn 5658 df-res 5659 df-ima 5660 df-pred 6293 df-ord 6354 df-on 6355 df-lim 6356 df-suc 6357 df-iota 6483 df-fun 6529 df-fn 6530 df-f 6531 df-f1 6532 df-fo 6533 df-f1o 6534 df-fv 6535 df-riota 7365 df-ov 7411 df-oprab 7412 df-mpo 7413 df-om 7861 df-2nd 7985 df-frecs 8277 df-wrecs 8308 df-recs 8357 df-rdg 8396 df-er 8695 df-en 8952 df-dom 8953 df-sdom 8954 df-pnf 11316 df-mnf 11317 df-xr 11318 df-ltxr 11319 df-le 11320 df-sub 11514 df-neg 11515 df-nn 12305 df-n0 12576 df-z 12663 |
| This theorem is used by: zltlem1d 12719 nn0ltlem1 12728 nn0lt2 12731 nn0le2is012 12732 nnltlem1 12735 nnm1ge0 12736 zextlt 12742 uzm1 12968 elfzm11 13697 preduz 13752 predfz 13755 elfzo 13763 fzosplitprm1 13881 intfracq 13967 seqf1olem1 14152 seqcoll 14576 isercolllem1 15799 fzm1ndvds 16459 bitscmp 16575 nn0seqcvgd 16707 isprm3 16820 ncoprmlnprm 16866 prmdiveq 16924 4sqlem12 17095 degltlem1 26351 dgreq0 26545 wilthlem1 27358 lgseisenlem2 27666 lgsquadlem1 27670 2lgslem1a1 27679 2sqlem8 27716 crctcshwlkn0lem4 30335 clwlkclwwlklem2a4 30521 clwlkclwwlklem2a 30522 frgrreggt1 30927 bcm1n 33320 ply1degltel 34059 smatrcl 34361 ballotlemimin 35072 ballotlemfrcn0 35096 knoppndvlem2 37301 poimirlem2 38460 poimirlem24 38482 sticksstones10 43125 fmul01lt1lem2 46519 fourierdlem41 47080 fourierdlem42 47081 fourierdlem50 47088 fourierdlem64 47102 fourierdlem79 47117 etransclem44 47210 etransclem48 47214 pw2m1lepw2m1 49554 fllog2 49602 |
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