![]() |
Mathbox for Thierry Arnoux |
< Previous
Next >
Nearby theorems |
|
Mirrors > Home > MPE Home > Th. List > Mathboxes > dpgti | Structured version Visualization version GIF version |
Description: Comparing a decimal expansions with the next lower integer. (Contributed by Thierry Arnoux, 16-Dec-2021.) |
Ref | Expression |
---|---|
dpgti.a | ⊢ 𝐴 ∈ ℕ0 |
dpgti.b | ⊢ 𝐵 ∈ ℝ+ |
Ref | Expression |
---|---|
dpgti | ⊢ 𝐴 < (𝐴.𝐵) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dpgti.a | . . . 4 ⊢ 𝐴 ∈ ℕ0 | |
2 | 1 | nn0rei 12534 | . . 3 ⊢ 𝐴 ∈ ℝ |
3 | dpgti.b | . . . 4 ⊢ 𝐵 ∈ ℝ+ | |
4 | 10re 12749 | . . . . . 6 ⊢ ;10 ∈ ℝ | |
5 | 10pos 12747 | . . . . . 6 ⊢ 0 < ;10 | |
6 | 4, 5 | pm3.2i 470 | . . . . 5 ⊢ (;10 ∈ ℝ ∧ 0 < ;10) |
7 | elrp 13033 | . . . . 5 ⊢ (;10 ∈ ℝ+ ↔ (;10 ∈ ℝ ∧ 0 < ;10)) | |
8 | 6, 7 | mpbir 231 | . . . 4 ⊢ ;10 ∈ ℝ+ |
9 | rpdivcl 13057 | . . . 4 ⊢ ((𝐵 ∈ ℝ+ ∧ ;10 ∈ ℝ+) → (𝐵 / ;10) ∈ ℝ+) | |
10 | 3, 8, 9 | mp2an 692 | . . 3 ⊢ (𝐵 / ;10) ∈ ℝ+ |
11 | ltaddrp 13069 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ (𝐵 / ;10) ∈ ℝ+) → 𝐴 < (𝐴 + (𝐵 / ;10))) | |
12 | 2, 10, 11 | mp2an 692 | . 2 ⊢ 𝐴 < (𝐴 + (𝐵 / ;10)) |
13 | rpre 13040 | . . . 4 ⊢ (𝐵 ∈ ℝ+ → 𝐵 ∈ ℝ) | |
14 | 3, 13 | ax-mp 5 | . . 3 ⊢ 𝐵 ∈ ℝ |
15 | 1, 14 | dpval2 32859 | . 2 ⊢ (𝐴.𝐵) = (𝐴 + (𝐵 / ;10)) |
16 | 12, 15 | breqtrri 5174 | 1 ⊢ 𝐴 < (𝐴.𝐵) |
Colors of variables: wff setvar class |
Syntax hints: ∧ wa 395 ∈ wcel 2105 class class class wbr 5147 (class class class)co 7430 ℝcr 11151 0cc0 11152 1c1 11153 + caddc 11155 < clt 11292 / cdiv 11917 ℕ0cn0 12523 ;cdc 12730 ℝ+crp 13031 .cdp 32854 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1791 ax-4 1805 ax-5 1907 ax-6 1964 ax-7 2004 ax-8 2107 ax-9 2115 ax-10 2138 ax-11 2154 ax-12 2174 ax-ext 2705 ax-sep 5301 ax-nul 5311 ax-pow 5370 ax-pr 5437 ax-un 7753 ax-resscn 11209 ax-1cn 11210 ax-icn 11211 ax-addcl 11212 ax-addrcl 11213 ax-mulcl 11214 ax-mulrcl 11215 ax-mulcom 11216 ax-addass 11217 ax-mulass 11218 ax-distr 11219 ax-i2m1 11220 ax-1ne0 11221 ax-1rid 11222 ax-rnegex 11223 ax-rrecex 11224 ax-cnre 11225 ax-pre-lttri 11226 ax-pre-lttrn 11227 ax-pre-ltadd 11228 ax-pre-mulgt0 11229 |
This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1539 df-fal 1549 df-ex 1776 df-nf 1780 df-sb 2062 df-mo 2537 df-eu 2566 df-clab 2712 df-cleq 2726 df-clel 2813 df-nfc 2889 df-ne 2938 df-nel 3044 df-ral 3059 df-rex 3068 df-rmo 3377 df-reu 3378 df-rab 3433 df-v 3479 df-sbc 3791 df-csb 3908 df-dif 3965 df-un 3967 df-in 3969 df-ss 3979 df-pss 3982 df-nul 4339 df-if 4531 df-pw 4606 df-sn 4631 df-pr 4633 df-op 4637 df-uni 4912 df-iun 4997 df-br 5148 df-opab 5210 df-mpt 5231 df-tr 5265 df-id 5582 df-eprel 5588 df-po 5596 df-so 5597 df-fr 5640 df-we 5642 df-xp 5694 df-rel 5695 df-cnv 5696 df-co 5697 df-dm 5698 df-rn 5699 df-res 5700 df-ima 5701 df-pred 6322 df-ord 6388 df-on 6389 df-lim 6390 df-suc 6391 df-iota 6515 df-fun 6564 df-fn 6565 df-f 6566 df-f1 6567 df-fo 6568 df-f1o 6569 df-fv 6570 df-riota 7387 df-ov 7433 df-oprab 7434 df-mpo 7435 df-om 7887 df-2nd 8013 df-frecs 8304 df-wrecs 8335 df-recs 8409 df-rdg 8448 df-er 8743 df-en 8984 df-dom 8985 df-sdom 8986 df-pnf 11294 df-mnf 11295 df-xr 11296 df-ltxr 11297 df-le 11298 df-sub 11491 df-neg 11492 df-div 11918 df-nn 12264 df-2 12326 df-3 12327 df-4 12328 df-5 12329 df-6 12330 df-7 12331 df-8 12332 df-9 12333 df-n0 12524 df-dec 12731 df-rp 13032 df-dp2 32838 df-dp 32855 |
This theorem is referenced by: hgt750lem 34644 |
Copyright terms: Public domain | W3C validator |