![]() |
Mathbox for Thierry Arnoux |
< Previous
Next >
Nearby theorems |
|
Mirrors > Home > MPE Home > Th. List > Mathboxes > dp2ltsuc | Structured version Visualization version GIF version |
Description: Comparing a decimal fraction with the next integer. (Contributed by Thierry Arnoux, 25-Dec-2021.) |
Ref | Expression |
---|---|
dp2lt.a | ⊢ 𝐴 ∈ ℕ0 |
dp2lt.b | ⊢ 𝐵 ∈ ℝ+ |
dp2ltsuc.1 | ⊢ 𝐵 < ;10 |
dp2ltsuc.2 | ⊢ (𝐴 + 1) = 𝐶 |
Ref | Expression |
---|---|
dp2ltsuc | ⊢ _𝐴𝐵 < 𝐶 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dp2ltsuc.1 | . . . . 5 ⊢ 𝐵 < ;10 | |
2 | dp2lt.b | . . . . . . 7 ⊢ 𝐵 ∈ ℝ+ | |
3 | rpre 13022 | . . . . . . 7 ⊢ (𝐵 ∈ ℝ+ → 𝐵 ∈ ℝ) | |
4 | 2, 3 | ax-mp 5 | . . . . . 6 ⊢ 𝐵 ∈ ℝ |
5 | 10re 12734 | . . . . . 6 ⊢ ;10 ∈ ℝ | |
6 | 10pos 12732 | . . . . . 6 ⊢ 0 < ;10 | |
7 | 4, 5, 5, 6 | ltdiv1ii 12181 | . . . . 5 ⊢ (𝐵 < ;10 ↔ (𝐵 / ;10) < (;10 / ;10)) |
8 | 1, 7 | mpbi 229 | . . . 4 ⊢ (𝐵 / ;10) < (;10 / ;10) |
9 | 5 | recni 11266 | . . . . 5 ⊢ ;10 ∈ ℂ |
10 | 10nn 12731 | . . . . . 6 ⊢ ;10 ∈ ℕ | |
11 | 10 | nnne0i 12290 | . . . . 5 ⊢ ;10 ≠ 0 |
12 | 9, 11 | dividi 11985 | . . . 4 ⊢ (;10 / ;10) = 1 |
13 | 8, 12 | breqtri 5177 | . . 3 ⊢ (𝐵 / ;10) < 1 |
14 | 4, 5, 11 | redivcli 12019 | . . . 4 ⊢ (𝐵 / ;10) ∈ ℝ |
15 | 1re 11252 | . . . 4 ⊢ 1 ∈ ℝ | |
16 | dp2lt.a | . . . . 5 ⊢ 𝐴 ∈ ℕ0 | |
17 | 16 | nn0rei 12521 | . . . 4 ⊢ 𝐴 ∈ ℝ |
18 | 14, 15, 17 | ltadd2i 11383 | . . 3 ⊢ ((𝐵 / ;10) < 1 ↔ (𝐴 + (𝐵 / ;10)) < (𝐴 + 1)) |
19 | 13, 18 | mpbi 229 | . 2 ⊢ (𝐴 + (𝐵 / ;10)) < (𝐴 + 1) |
20 | df-dp2 32616 | . 2 ⊢ _𝐴𝐵 = (𝐴 + (𝐵 / ;10)) | |
21 | dp2ltsuc.2 | . . 3 ⊢ (𝐴 + 1) = 𝐶 | |
22 | 21 | eqcomi 2737 | . 2 ⊢ 𝐶 = (𝐴 + 1) |
23 | 19, 20, 22 | 3brtr4i 5182 | 1 ⊢ _𝐴𝐵 < 𝐶 |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1533 ∈ wcel 2098 class class class wbr 5152 (class class class)co 7426 ℝcr 11145 0cc0 11146 1c1 11147 + caddc 11149 < clt 11286 / cdiv 11909 ℕ0cn0 12510 ;cdc 12715 ℝ+crp 13014 _cdp2 32615 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1789 ax-4 1803 ax-5 1905 ax-6 1963 ax-7 2003 ax-8 2100 ax-9 2108 ax-10 2129 ax-11 2146 ax-12 2166 ax-ext 2699 ax-sep 5303 ax-nul 5310 ax-pow 5369 ax-pr 5433 ax-un 7746 ax-resscn 11203 ax-1cn 11204 ax-icn 11205 ax-addcl 11206 ax-addrcl 11207 ax-mulcl 11208 ax-mulrcl 11209 ax-mulcom 11210 ax-addass 11211 ax-mulass 11212 ax-distr 11213 ax-i2m1 11214 ax-1ne0 11215 ax-1rid 11216 ax-rnegex 11217 ax-rrecex 11218 ax-cnre 11219 ax-pre-lttri 11220 ax-pre-lttrn 11221 ax-pre-ltadd 11222 ax-pre-mulgt0 11223 |
This theorem depends on definitions: df-bi 206 df-an 395 df-or 846 df-3or 1085 df-3an 1086 df-tru 1536 df-fal 1546 df-ex 1774 df-nf 1778 df-sb 2060 df-mo 2529 df-eu 2558 df-clab 2706 df-cleq 2720 df-clel 2806 df-nfc 2881 df-ne 2938 df-nel 3044 df-ral 3059 df-rex 3068 df-rmo 3374 df-reu 3375 df-rab 3431 df-v 3475 df-sbc 3779 df-csb 3895 df-dif 3952 df-un 3954 df-in 3956 df-ss 3966 df-pss 3968 df-nul 4327 df-if 4533 df-pw 4608 df-sn 4633 df-pr 4635 df-op 4639 df-uni 4913 df-iun 5002 df-br 5153 df-opab 5215 df-mpt 5236 df-tr 5270 df-id 5580 df-eprel 5586 df-po 5594 df-so 5595 df-fr 5637 df-we 5639 df-xp 5688 df-rel 5689 df-cnv 5690 df-co 5691 df-dm 5692 df-rn 5693 df-res 5694 df-ima 5695 df-pred 6310 df-ord 6377 df-on 6378 df-lim 6379 df-suc 6380 df-iota 6505 df-fun 6555 df-fn 6556 df-f 6557 df-f1 6558 df-fo 6559 df-f1o 6560 df-fv 6561 df-riota 7382 df-ov 7429 df-oprab 7430 df-mpo 7431 df-om 7877 df-2nd 8000 df-frecs 8293 df-wrecs 8324 df-recs 8398 df-rdg 8437 df-er 8731 df-en 8971 df-dom 8972 df-sdom 8973 df-pnf 11288 df-mnf 11289 df-xr 11290 df-ltxr 11291 df-le 11292 df-sub 11484 df-neg 11485 df-div 11910 df-nn 12251 df-2 12313 df-3 12314 df-4 12315 df-5 12316 df-6 12317 df-7 12318 df-8 12319 df-9 12320 df-n0 12511 df-dec 12716 df-rp 13015 df-dp2 32616 |
This theorem is referenced by: hgt750lem2 34317 |
Copyright terms: Public domain | W3C validator |