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Mirrors > Home > MPE Home > Th. List > zltaddlt1le | Structured version Visualization version GIF version |
Description: The sum of an integer and a real number between 0 and 1 is less than or equal to a second integer iff the sum is less than the second integer. (Contributed by AV, 1-Jul-2021.) |
Ref | Expression |
---|---|
zltaddlt1le | ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐴 ∈ (0(,)1)) → ((𝑀 + 𝐴) < 𝑁 ↔ (𝑀 + 𝐴) ≤ 𝑁)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | zre 12253 | . . . . . 6 ⊢ (𝑀 ∈ ℤ → 𝑀 ∈ ℝ) | |
2 | 1 | adantr 480 | . . . . 5 ⊢ ((𝑀 ∈ ℤ ∧ 𝐴 ∈ (0(,)1)) → 𝑀 ∈ ℝ) |
3 | elioore 13038 | . . . . . 6 ⊢ (𝐴 ∈ (0(,)1) → 𝐴 ∈ ℝ) | |
4 | 3 | adantl 481 | . . . . 5 ⊢ ((𝑀 ∈ ℤ ∧ 𝐴 ∈ (0(,)1)) → 𝐴 ∈ ℝ) |
5 | 2, 4 | readdcld 10935 | . . . 4 ⊢ ((𝑀 ∈ ℤ ∧ 𝐴 ∈ (0(,)1)) → (𝑀 + 𝐴) ∈ ℝ) |
6 | 5 | 3adant2 1129 | . . 3 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐴 ∈ (0(,)1)) → (𝑀 + 𝐴) ∈ ℝ) |
7 | zre 12253 | . . . 4 ⊢ (𝑁 ∈ ℤ → 𝑁 ∈ ℝ) | |
8 | 7 | 3ad2ant2 1132 | . . 3 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐴 ∈ (0(,)1)) → 𝑁 ∈ ℝ) |
9 | ltle 10994 | . . 3 ⊢ (((𝑀 + 𝐴) ∈ ℝ ∧ 𝑁 ∈ ℝ) → ((𝑀 + 𝐴) < 𝑁 → (𝑀 + 𝐴) ≤ 𝑁)) | |
10 | 6, 8, 9 | syl2anc 583 | . 2 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐴 ∈ (0(,)1)) → ((𝑀 + 𝐴) < 𝑁 → (𝑀 + 𝐴) ≤ 𝑁)) |
11 | elioo3g 13037 | . . . . . 6 ⊢ (𝐴 ∈ (0(,)1) ↔ ((0 ∈ ℝ* ∧ 1 ∈ ℝ* ∧ 𝐴 ∈ ℝ*) ∧ (0 < 𝐴 ∧ 𝐴 < 1))) | |
12 | simpl 482 | . . . . . 6 ⊢ ((0 < 𝐴 ∧ 𝐴 < 1) → 0 < 𝐴) | |
13 | 11, 12 | simplbiim 504 | . . . . 5 ⊢ (𝐴 ∈ (0(,)1) → 0 < 𝐴) |
14 | 3, 13 | elrpd 12698 | . . . 4 ⊢ (𝐴 ∈ (0(,)1) → 𝐴 ∈ ℝ+) |
15 | addlelt 12773 | . . . 4 ⊢ ((𝑀 ∈ ℝ ∧ 𝑁 ∈ ℝ ∧ 𝐴 ∈ ℝ+) → ((𝑀 + 𝐴) ≤ 𝑁 → 𝑀 < 𝑁)) | |
16 | 1, 7, 14, 15 | syl3an 1158 | . . 3 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐴 ∈ (0(,)1)) → ((𝑀 + 𝐴) ≤ 𝑁 → 𝑀 < 𝑁)) |
17 | zltp1le 12300 | . . . . 5 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝑀 < 𝑁 ↔ (𝑀 + 1) ≤ 𝑁)) | |
18 | 17 | 3adant3 1130 | . . . 4 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐴 ∈ (0(,)1)) → (𝑀 < 𝑁 ↔ (𝑀 + 1) ≤ 𝑁)) |
19 | 3 | 3ad2ant3 1133 | . . . . . 6 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐴 ∈ (0(,)1)) → 𝐴 ∈ ℝ) |
20 | 1red 10907 | . . . . . 6 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐴 ∈ (0(,)1)) → 1 ∈ ℝ) | |
21 | 1 | 3ad2ant1 1131 | . . . . . 6 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐴 ∈ (0(,)1)) → 𝑀 ∈ ℝ) |
22 | simpr 484 | . . . . . . . 8 ⊢ ((0 < 𝐴 ∧ 𝐴 < 1) → 𝐴 < 1) | |
23 | 11, 22 | simplbiim 504 | . . . . . . 7 ⊢ (𝐴 ∈ (0(,)1) → 𝐴 < 1) |
24 | 23 | 3ad2ant3 1133 | . . . . . 6 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐴 ∈ (0(,)1)) → 𝐴 < 1) |
25 | 19, 20, 21, 24 | ltadd2dd 11064 | . . . . 5 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐴 ∈ (0(,)1)) → (𝑀 + 𝐴) < (𝑀 + 1)) |
26 | peano2z 12291 | . . . . . . . 8 ⊢ (𝑀 ∈ ℤ → (𝑀 + 1) ∈ ℤ) | |
27 | 26 | zred 12355 | . . . . . . 7 ⊢ (𝑀 ∈ ℤ → (𝑀 + 1) ∈ ℝ) |
28 | 27 | 3ad2ant1 1131 | . . . . . 6 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐴 ∈ (0(,)1)) → (𝑀 + 1) ∈ ℝ) |
29 | ltletr 10997 | . . . . . 6 ⊢ (((𝑀 + 𝐴) ∈ ℝ ∧ (𝑀 + 1) ∈ ℝ ∧ 𝑁 ∈ ℝ) → (((𝑀 + 𝐴) < (𝑀 + 1) ∧ (𝑀 + 1) ≤ 𝑁) → (𝑀 + 𝐴) < 𝑁)) | |
30 | 6, 28, 8, 29 | syl3anc 1369 | . . . . 5 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐴 ∈ (0(,)1)) → (((𝑀 + 𝐴) < (𝑀 + 1) ∧ (𝑀 + 1) ≤ 𝑁) → (𝑀 + 𝐴) < 𝑁)) |
31 | 25, 30 | mpand 691 | . . . 4 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐴 ∈ (0(,)1)) → ((𝑀 + 1) ≤ 𝑁 → (𝑀 + 𝐴) < 𝑁)) |
32 | 18, 31 | sylbid 239 | . . 3 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐴 ∈ (0(,)1)) → (𝑀 < 𝑁 → (𝑀 + 𝐴) < 𝑁)) |
33 | 16, 32 | syld 47 | . 2 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐴 ∈ (0(,)1)) → ((𝑀 + 𝐴) ≤ 𝑁 → (𝑀 + 𝐴) < 𝑁)) |
34 | 10, 33 | impbid 211 | 1 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ ∧ 𝐴 ∈ (0(,)1)) → ((𝑀 + 𝐴) < 𝑁 ↔ (𝑀 + 𝐴) ≤ 𝑁)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 395 ∧ w3a 1085 ∈ wcel 2108 class class class wbr 5070 (class class class)co 7255 ℝcr 10801 0cc0 10802 1c1 10803 + caddc 10805 ℝ*cxr 10939 < clt 10940 ≤ cle 10941 ℤcz 12249 ℝ+crp 12659 (,)cioo 13008 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 ax-cnex 10858 ax-resscn 10859 ax-1cn 10860 ax-icn 10861 ax-addcl 10862 ax-addrcl 10863 ax-mulcl 10864 ax-mulrcl 10865 ax-mulcom 10866 ax-addass 10867 ax-mulass 10868 ax-distr 10869 ax-i2m1 10870 ax-1ne0 10871 ax-1rid 10872 ax-rnegex 10873 ax-rrecex 10874 ax-cnre 10875 ax-pre-lttri 10876 ax-pre-lttrn 10877 ax-pre-ltadd 10878 ax-pre-mulgt0 10879 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-nel 3049 df-ral 3068 df-rex 3069 df-reu 3070 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3902 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-tp 4563 df-op 4565 df-uni 4837 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-tr 5188 df-id 5480 df-eprel 5486 df-po 5494 df-so 5495 df-fr 5535 df-we 5537 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-pred 6191 df-ord 6254 df-on 6255 df-lim 6256 df-suc 6257 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-riota 7212 df-ov 7258 df-oprab 7259 df-mpo 7260 df-om 7688 df-1st 7804 df-2nd 7805 df-frecs 8068 df-wrecs 8099 df-recs 8173 df-rdg 8212 df-er 8456 df-en 8692 df-dom 8693 df-sdom 8694 df-pnf 10942 df-mnf 10943 df-xr 10944 df-ltxr 10945 df-le 10946 df-sub 11137 df-neg 11138 df-nn 11904 df-n0 12164 df-z 12250 df-rp 12660 df-ioo 13012 |
This theorem is referenced by: halfleoddlt 15999 |
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