Mathbox for Thierry Arnoux |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > dp2ltc | Structured version Visualization version GIF version |
Description: Comparing two decimal expansions (unequal higher places). (Contributed by Thierry Arnoux, 16-Dec-2021.) |
Ref | Expression |
---|---|
dp2lt.a | ⊢ 𝐴 ∈ ℕ0 |
dp2lt.b | ⊢ 𝐵 ∈ ℝ+ |
dp2ltc.c | ⊢ 𝐶 ∈ ℕ0 |
dp2ltc.d | ⊢ 𝐷 ∈ ℝ+ |
dp2ltc.s | ⊢ 𝐵 < ;10 |
dp2ltc.l | ⊢ 𝐴 < 𝐶 |
Ref | Expression |
---|---|
dp2ltc | ⊢ _𝐴𝐵 < _𝐶𝐷 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dp2ltc.s | . . . . . 6 ⊢ 𝐵 < ;10 | |
2 | rpssre 11843 | . . . . . . . 8 ⊢ ℝ+ ⊆ ℝ | |
3 | dp2lt.b | . . . . . . . 8 ⊢ 𝐵 ∈ ℝ+ | |
4 | 2, 3 | sselii 3600 | . . . . . . 7 ⊢ 𝐵 ∈ ℝ |
5 | 10re 11517 | . . . . . . . 8 ⊢ ;10 ∈ ℝ | |
6 | 10pos 11515 | . . . . . . . 8 ⊢ 0 < ;10 | |
7 | elrp 11834 | . . . . . . . 8 ⊢ (;10 ∈ ℝ+ ↔ (;10 ∈ ℝ ∧ 0 < ;10)) | |
8 | 5, 6, 7 | mpbir2an 955 | . . . . . . 7 ⊢ ;10 ∈ ℝ+ |
9 | divlt1lt 11899 | . . . . . . 7 ⊢ ((𝐵 ∈ ℝ ∧ ;10 ∈ ℝ+) → ((𝐵 / ;10) < 1 ↔ 𝐵 < ;10)) | |
10 | 4, 8, 9 | mp2an 708 | . . . . . 6 ⊢ ((𝐵 / ;10) < 1 ↔ 𝐵 < ;10) |
11 | 1, 10 | mpbir 221 | . . . . 5 ⊢ (𝐵 / ;10) < 1 |
12 | 5, 6 | gt0ne0ii 10564 | . . . . . . 7 ⊢ ;10 ≠ 0 |
13 | 4, 5, 12 | redivcli 10792 | . . . . . 6 ⊢ (𝐵 / ;10) ∈ ℝ |
14 | 1re 10039 | . . . . . 6 ⊢ 1 ∈ ℝ | |
15 | dp2lt.a | . . . . . . 7 ⊢ 𝐴 ∈ ℕ0 | |
16 | 15 | nn0rei 11303 | . . . . . 6 ⊢ 𝐴 ∈ ℝ |
17 | ltadd2 10141 | . . . . . 6 ⊢ (((𝐵 / ;10) ∈ ℝ ∧ 1 ∈ ℝ ∧ 𝐴 ∈ ℝ) → ((𝐵 / ;10) < 1 ↔ (𝐴 + (𝐵 / ;10)) < (𝐴 + 1))) | |
18 | 13, 14, 16, 17 | mp3an 1424 | . . . . 5 ⊢ ((𝐵 / ;10) < 1 ↔ (𝐴 + (𝐵 / ;10)) < (𝐴 + 1)) |
19 | 11, 18 | mpbi 220 | . . . 4 ⊢ (𝐴 + (𝐵 / ;10)) < (𝐴 + 1) |
20 | dp2ltc.l | . . . . 5 ⊢ 𝐴 < 𝐶 | |
21 | 15 | nn0zi 11402 | . . . . . 6 ⊢ 𝐴 ∈ ℤ |
22 | dp2ltc.c | . . . . . . 7 ⊢ 𝐶 ∈ ℕ0 | |
23 | 22 | nn0zi 11402 | . . . . . 6 ⊢ 𝐶 ∈ ℤ |
24 | zltp1le 11427 | . . . . . 6 ⊢ ((𝐴 ∈ ℤ ∧ 𝐶 ∈ ℤ) → (𝐴 < 𝐶 ↔ (𝐴 + 1) ≤ 𝐶)) | |
25 | 21, 23, 24 | mp2an 708 | . . . . 5 ⊢ (𝐴 < 𝐶 ↔ (𝐴 + 1) ≤ 𝐶) |
26 | 20, 25 | mpbi 220 | . . . 4 ⊢ (𝐴 + 1) ≤ 𝐶 |
27 | 16, 13 | readdcli 10053 | . . . . 5 ⊢ (𝐴 + (𝐵 / ;10)) ∈ ℝ |
28 | 16, 14 | readdcli 10053 | . . . . 5 ⊢ (𝐴 + 1) ∈ ℝ |
29 | 22 | nn0rei 11303 | . . . . 5 ⊢ 𝐶 ∈ ℝ |
30 | 27, 28, 29 | ltletri 10165 | . . . 4 ⊢ (((𝐴 + (𝐵 / ;10)) < (𝐴 + 1) ∧ (𝐴 + 1) ≤ 𝐶) → (𝐴 + (𝐵 / ;10)) < 𝐶) |
31 | 19, 26, 30 | mp2an 708 | . . 3 ⊢ (𝐴 + (𝐵 / ;10)) < 𝐶 |
32 | dp2ltc.d | . . . . . 6 ⊢ 𝐷 ∈ ℝ+ | |
33 | 32, 8 | pm3.2i 471 | . . . . 5 ⊢ (𝐷 ∈ ℝ+ ∧ ;10 ∈ ℝ+) |
34 | rpdivcl 11856 | . . . . 5 ⊢ ((𝐷 ∈ ℝ+ ∧ ;10 ∈ ℝ+) → (𝐷 / ;10) ∈ ℝ+) | |
35 | 33, 34 | ax-mp 5 | . . . 4 ⊢ (𝐷 / ;10) ∈ ℝ+ |
36 | ltaddrp 11867 | . . . 4 ⊢ ((𝐶 ∈ ℝ ∧ (𝐷 / ;10) ∈ ℝ+) → 𝐶 < (𝐶 + (𝐷 / ;10))) | |
37 | 29, 35, 36 | mp2an 708 | . . 3 ⊢ 𝐶 < (𝐶 + (𝐷 / ;10)) |
38 | 2, 32 | sselii 3600 | . . . . . 6 ⊢ 𝐷 ∈ ℝ |
39 | 38, 5, 12 | redivcli 10792 | . . . . 5 ⊢ (𝐷 / ;10) ∈ ℝ |
40 | 29, 39 | readdcli 10053 | . . . 4 ⊢ (𝐶 + (𝐷 / ;10)) ∈ ℝ |
41 | 27, 29, 40 | lttri 10163 | . . 3 ⊢ (((𝐴 + (𝐵 / ;10)) < 𝐶 ∧ 𝐶 < (𝐶 + (𝐷 / ;10))) → (𝐴 + (𝐵 / ;10)) < (𝐶 + (𝐷 / ;10))) |
42 | 31, 37, 41 | mp2an 708 | . 2 ⊢ (𝐴 + (𝐵 / ;10)) < (𝐶 + (𝐷 / ;10)) |
43 | df-dp2 29578 | . 2 ⊢ _𝐴𝐵 = (𝐴 + (𝐵 / ;10)) | |
44 | df-dp2 29578 | . 2 ⊢ _𝐶𝐷 = (𝐶 + (𝐷 / ;10)) | |
45 | 42, 43, 44 | 3brtr4i 4683 | 1 ⊢ _𝐴𝐵 < _𝐶𝐷 |
Colors of variables: wff setvar class |
Syntax hints: ↔ wb 196 ∧ wa 384 ∈ wcel 1990 class class class wbr 4653 (class class class)co 6650 ℝcr 9935 0cc0 9936 1c1 9937 + caddc 9939 < clt 10074 ≤ cle 10075 / cdiv 10684 ℕ0cn0 11292 ℤcz 11377 ;cdc 11493 ℝ+crp 11832 _cdp2 29577 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-8 1992 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-sep 4781 ax-nul 4789 ax-pow 4843 ax-pr 4906 ax-un 6949 ax-resscn 9993 ax-1cn 9994 ax-icn 9995 ax-addcl 9996 ax-addrcl 9997 ax-mulcl 9998 ax-mulrcl 9999 ax-mulcom 10000 ax-addass 10001 ax-mulass 10002 ax-distr 10003 ax-i2m1 10004 ax-1ne0 10005 ax-1rid 10006 ax-rnegex 10007 ax-rrecex 10008 ax-cnre 10009 ax-pre-lttri 10010 ax-pre-lttrn 10011 ax-pre-ltadd 10012 ax-pre-mulgt0 10013 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3or 1038 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ne 2795 df-nel 2898 df-ral 2917 df-rex 2918 df-reu 2919 df-rmo 2920 df-rab 2921 df-v 3202 df-sbc 3436 df-csb 3534 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-pss 3590 df-nul 3916 df-if 4087 df-pw 4160 df-sn 4178 df-pr 4180 df-tp 4182 df-op 4184 df-uni 4437 df-iun 4522 df-br 4654 df-opab 4713 df-mpt 4730 df-tr 4753 df-id 5024 df-eprel 5029 df-po 5035 df-so 5036 df-fr 5073 df-we 5075 df-xp 5120 df-rel 5121 df-cnv 5122 df-co 5123 df-dm 5124 df-rn 5125 df-res 5126 df-ima 5127 df-pred 5680 df-ord 5726 df-on 5727 df-lim 5728 df-suc 5729 df-iota 5851 df-fun 5890 df-fn 5891 df-f 5892 df-f1 5893 df-fo 5894 df-f1o 5895 df-fv 5896 df-riota 6611 df-ov 6653 df-oprab 6654 df-mpt2 6655 df-om 7066 df-wrecs 7407 df-recs 7468 df-rdg 7506 df-er 7742 df-en 7956 df-dom 7957 df-sdom 7958 df-pnf 10076 df-mnf 10077 df-xr 10078 df-ltxr 10079 df-le 10080 df-sub 10268 df-neg 10269 df-div 10685 df-nn 11021 df-2 11079 df-3 11080 df-4 11081 df-5 11082 df-6 11083 df-7 11084 df-8 11085 df-9 11086 df-n0 11293 df-z 11378 df-dec 11494 df-rp 11833 df-dp2 29578 |
This theorem is referenced by: dpltc 29615 |
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