| 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 13050 | . . . . . . . 8 ⊢ ℝ+ ⊆ ℝ | |
| 3 | dp2lt.b | . . . . . . . 8 ⊢ 𝐵 ∈ ℝ+ | |
| 4 | 2, 3 | sselii 3928 | . . . . . . 7 ⊢ 𝐵 ∈ ℝ |
| 5 | 10re 12759 | . . . . . . . 8 ⊢ ;10 ∈ ℝ | |
| 6 | 10pos 12757 | . . . . . . . 8 ⊢ 0 < ;10 | |
| 7 | elrp 13044 | . . . . . . . 8 ⊢ (;10 ∈ ℝ+ ↔ (;10 ∈ ℝ ∧ 0 < ;10)) | |
| 8 | 5, 6, 7 | mpbir2an 724 | . . . . . . 7 ⊢ ;10 ∈ ℝ+ |
| 9 | divlt1lt 13113 | . . . . . . 7 ⊢ ((𝐵 ∈ ℝ ∧ ;10 ∈ ℝ+) → ((𝐵 / ;10) < 1 ↔ 𝐵 < ;10)) | |
| 10 | 4, 8, 9 | mp2an 705 | . . . . . 6 ⊢ ((𝐵 / ;10) < 1 ↔ 𝐵 < ;10) |
| 11 | 1, 10 | mpbir 234 | . . . . 5 ⊢ (𝐵 / ;10) < 1 |
| 12 | 5, 6 | gt0ne0ii 11774 | . . . . . . 7 ⊢ ;10 ≠ 0 |
| 13 | 4, 5, 12 | redivcli 12006 | . . . . . 6 ⊢ (𝐵 / ;10) ∈ ℝ |
| 14 | 1re 11232 | . . . . . 6 ⊢ 1 ∈ ℝ | |
| 15 | dp2lt.a | . . . . . . 7 ⊢ 𝐴 ∈ ℕ0 | |
| 16 | 15 | nn0rei 12539 | . . . . . 6 ⊢ 𝐴 ∈ ℝ |
| 17 | ltadd2 11338 | . . . . . 6 ⊢ (((𝐵 / ;10) ∈ ℝ ∧ 1 ∈ ℝ ∧ 𝐴 ∈ ℝ) → ((𝐵 / ;10) < 1 ↔ (𝐴 + (𝐵 / ;10)) < (𝐴 + 1))) | |
| 18 | 13, 14, 16, 17 | mp3an 1490 | . . . . 5 ⊢ ((𝐵 / ;10) < 1 ↔ (𝐴 + (𝐵 / ;10)) < (𝐴 + 1)) |
| 19 | 11, 18 | mpbi 233 | . . . 4 ⊢ (𝐴 + (𝐵 / ;10)) < (𝐴 + 1) |
| 20 | dp2ltc.l | . . . . 5 ⊢ 𝐴 < 𝐶 | |
| 21 | 15 | nn0zi 12643 | . . . . . 6 ⊢ 𝐴 ∈ ℤ |
| 22 | dp2ltc.c | . . . . . . 7 ⊢ 𝐶 ∈ ℕ0 | |
| 23 | 22 | nn0zi 12643 | . . . . . 6 ⊢ 𝐶 ∈ ℤ |
| 24 | zltp1le 12668 | . . . . . 6 ⊢ ((𝐴 ∈ ℤ ∧ 𝐶 ∈ ℤ) → (𝐴 < 𝐶 ↔ (𝐴 + 1) ≤ 𝐶)) | |
| 25 | 21, 23, 24 | mp2an 705 | . . . . 5 ⊢ (𝐴 < 𝐶 ↔ (𝐴 + 1) ≤ 𝐶) |
| 26 | 20, 25 | mpbi 233 | . . . 4 ⊢ (𝐴 + 1) ≤ 𝐶 |
| 27 | 16, 13 | readdcli 11248 | . . . . 5 ⊢ (𝐴 + (𝐵 / ;10)) ∈ ℝ |
| 28 | 16, 14 | readdcli 11248 | . . . . 5 ⊢ (𝐴 + 1) ∈ ℝ |
| 29 | 22 | nn0rei 12539 | . . . . 5 ⊢ 𝐶 ∈ ℝ |
| 30 | 27, 28, 29 | ltletri 11362 | . . . 4 ⊢ (((𝐴 + (𝐵 / ;10)) < (𝐴 + 1) ∧ (𝐴 + 1) ≤ 𝐶) → (𝐴 + (𝐵 / ;10)) < 𝐶) |
| 31 | 19, 26, 30 | mp2an 705 | . . 3 ⊢ (𝐴 + (𝐵 / ;10)) < 𝐶 |
| 32 | dp2ltc.d | . . . . . 6 ⊢ 𝐷 ∈ ℝ+ | |
| 33 | 32, 8 | pm3.2i 476 | . . . . 5 ⊢ (𝐷 ∈ ℝ+ ∧ ;10 ∈ ℝ+) |
| 34 | rpdivcl 13069 | . . . . 5 ⊢ ((𝐷 ∈ ℝ+ ∧ ;10 ∈ ℝ+) → (𝐷 / ;10) ∈ ℝ+) | |
| 35 | 33, 34 | ax-mp 5 | . . . 4 ⊢ (𝐷 / ;10) ∈ ℝ+ |
| 36 | ltaddrp 13081 | . . . 4 ⊢ ((𝐶 ∈ ℝ ∧ (𝐷 / ;10) ∈ ℝ+) → 𝐶 < (𝐶 + (𝐷 / ;10))) | |
| 37 | 29, 35, 36 | mp2an 705 | . . 3 ⊢ 𝐶 < (𝐶 + (𝐷 / ;10)) |
| 38 | 2, 32 | sselii 3928 | . . . . . 6 ⊢ 𝐷 ∈ ℝ |
| 39 | 38, 5, 12 | redivcli 12006 | . . . . 5 ⊢ (𝐷 / ;10) ∈ ℝ |
| 40 | 29, 39 | readdcli 11248 | . . . 4 ⊢ (𝐶 + (𝐷 / ;10)) ∈ ℝ |
| 41 | 27, 29, 40 | lttri 11360 | . . 3 ⊢ (((𝐴 + (𝐵 / ;10)) < 𝐶 ∧ 𝐶 < (𝐶 + (𝐷 / ;10))) → (𝐴 + (𝐵 / ;10)) < (𝐶 + (𝐷 / ;10))) |
| 42 | 31, 37, 41 | mp2an 705 | . 2 ⊢ (𝐴 + (𝐵 / ;10)) < (𝐶 + (𝐷 / ;10)) |
| 43 | df-dp2 33317 | . 2 ⊢ _𝐴𝐵 = (𝐴 + (𝐵 / ;10)) | |
| 44 | df-dp2 33317 | . 2 ⊢ _𝐶𝐷 = (𝐶 + (𝐷 / ;10)) | |
| 45 | 42, 43, 44 | 3brtr4i 5135 | 1 ⊢ _𝐴𝐵 < _𝐶𝐷 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ↔ wb 209 ∧ wa 401 ∈ wcel 2145 class class class wbr 5103 (class class class)co 7413 ℝcr 11123 0cc0 11124 1c1 11125 + caddc 11127 < clt 11267 ≤ cle 11268 / cdiv 11895 ℕ0cn0 12528 ℤcz 12615 ;cdc 12736 ℝ+crp 13042 _cdp2 33316 |
| 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 5251 ax-nul 5263 ax-pow 5330 ax-pr 5398 ax-un 7736 ax-resscn 11181 ax-1cn 11182 ax-icn 11183 ax-addcl 11184 ax-addrcl 11185 ax-mulcl 11186 ax-mulrcl 11187 ax-mulcom 11188 ax-addass 11189 ax-mulass 11190 ax-distr 11191 ax-i2m1 11192 ax-1ne0 11193 ax-1rid 11194 ax-rnegex 11195 ax-rrecex 11196 ax-cnre 11197 ax-pre-lttri 11198 ax-pre-lttrn 11199 ax-pre-ltadd 11200 ax-pre-mulgt0 11201 |
| 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-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5550 df-eprel 5555 df-po 5563 df-so 5564 df-fr 5608 df-we 5610 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-pred 6299 df-ord 6360 df-on 6361 df-lim 6362 df-suc 6363 df-iota 6489 df-fun 6535 df-fn 6536 df-f 6537 df-f1 6538 df-fo 6539 df-f1o 6540 df-fv 6541 df-riota 7370 df-ov 7416 df-oprab 7417 df-mpo 7418 df-om 7863 df-2nd 7987 df-frecs 8280 df-wrecs 8311 df-recs 8360 df-rdg 8399 df-er 8696 df-en 8953 df-dom 8954 df-sdom 8955 df-pnf 11269 df-mnf 11270 df-xr 11271 df-ltxr 11272 df-le 11273 df-sub 11467 df-neg 11468 df-div 11896 df-nn 12258 df-2 12327 df-3 12328 df-4 12329 df-5 12330 df-6 12331 df-7 12332 df-8 12333 df-9 12334 df-n0 12529 df-z 12616 df-dec 12737 df-rp 13043 df-dp2 33317 |
| This theorem is used by: dpltc 33352 |
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