| 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 12995 | . . . . . . . 8 ⊢ ℝ+ ⊆ ℝ | |
| 3 | dp2lt.b | . . . . . . . 8 ⊢ 𝐵 ∈ ℝ+ | |
| 4 | 2, 3 | sselii 3931 | . . . . . . 7 ⊢ 𝐵 ∈ ℝ |
| 5 | 10re 12705 | . . . . . . . 8 ⊢ ;10 ∈ ℝ | |
| 6 | 10pos 12703 | . . . . . . . 8 ⊢ 0 < ;10 | |
| 7 | elrp 12989 | . . . . . . . 8 ⊢ (;10 ∈ ℝ+ ↔ (;10 ∈ ℝ ∧ 0 < ;10)) | |
| 8 | 5, 6, 7 | mpbir2an 721 | . . . . . . 7 ⊢ ;10 ∈ ℝ+ |
| 9 | divlt1lt 13058 | . . . . . . 7 ⊢ ((𝐵 ∈ ℝ ∧ ;10 ∈ ℝ+) → ((𝐵 / ;10) < 1 ↔ 𝐵 < ;10)) | |
| 10 | 4, 8, 9 | mp2an 702 | . . . . . 6 ⊢ ((𝐵 / ;10) < 1 ↔ 𝐵 < ;10) |
| 11 | 1, 10 | mpbir 233 | . . . . 5 ⊢ (𝐵 / ;10) < 1 |
| 12 | 5, 6 | gt0ne0ii 11717 | . . . . . . 7 ⊢ ;10 ≠ 0 |
| 13 | 4, 5, 12 | redivcli 11952 | . . . . . 6 ⊢ (𝐵 / ;10) ∈ ℝ |
| 14 | 1re 11175 | . . . . . 6 ⊢ 1 ∈ ℝ | |
| 15 | dp2lt.a | . . . . . . 7 ⊢ 𝐴 ∈ ℕ0 | |
| 16 | 15 | nn0rei 12486 | . . . . . 6 ⊢ 𝐴 ∈ ℝ |
| 17 | ltadd2 11281 | . . . . . 6 ⊢ (((𝐵 / ;10) ∈ ℝ ∧ 1 ∈ ℝ ∧ 𝐴 ∈ ℝ) → ((𝐵 / ;10) < 1 ↔ (𝐴 + (𝐵 / ;10)) < (𝐴 + 1))) | |
| 18 | 13, 14, 16, 17 | mp3an 1481 | . . . . 5 ⊢ ((𝐵 / ;10) < 1 ↔ (𝐴 + (𝐵 / ;10)) < (𝐴 + 1)) |
| 19 | 11, 18 | mpbi 232 | . . . 4 ⊢ (𝐴 + (𝐵 / ;10)) < (𝐴 + 1) |
| 20 | dp2ltc.l | . . . . 5 ⊢ 𝐴 < 𝐶 | |
| 21 | 15 | nn0zi 12590 | . . . . . 6 ⊢ 𝐴 ∈ ℤ |
| 22 | dp2ltc.c | . . . . . . 7 ⊢ 𝐶 ∈ ℕ0 | |
| 23 | 22 | nn0zi 12590 | . . . . . 6 ⊢ 𝐶 ∈ ℤ |
| 24 | zltp1le 12615 | . . . . . 6 ⊢ ((𝐴 ∈ ℤ ∧ 𝐶 ∈ ℤ) → (𝐴 < 𝐶 ↔ (𝐴 + 1) ≤ 𝐶)) | |
| 25 | 21, 23, 24 | mp2an 702 | . . . . 5 ⊢ (𝐴 < 𝐶 ↔ (𝐴 + 1) ≤ 𝐶) |
| 26 | 20, 25 | mpbi 232 | . . . 4 ⊢ (𝐴 + 1) ≤ 𝐶 |
| 27 | 16, 13 | readdcli 11191 | . . . . 5 ⊢ (𝐴 + (𝐵 / ;10)) ∈ ℝ |
| 28 | 16, 14 | readdcli 11191 | . . . . 5 ⊢ (𝐴 + 1) ∈ ℝ |
| 29 | 22 | nn0rei 12486 | . . . . 5 ⊢ 𝐶 ∈ ℝ |
| 30 | 27, 28, 29 | ltletri 11305 | . . . 4 ⊢ (((𝐴 + (𝐵 / ;10)) < (𝐴 + 1) ∧ (𝐴 + 1) ≤ 𝐶) → (𝐴 + (𝐵 / ;10)) < 𝐶) |
| 31 | 19, 26, 30 | mp2an 702 | . . 3 ⊢ (𝐴 + (𝐵 / ;10)) < 𝐶 |
| 32 | dp2ltc.d | . . . . . 6 ⊢ 𝐷 ∈ ℝ+ | |
| 33 | 32, 8 | pm3.2i 474 | . . . . 5 ⊢ (𝐷 ∈ ℝ+ ∧ ;10 ∈ ℝ+) |
| 34 | rpdivcl 13014 | . . . . 5 ⊢ ((𝐷 ∈ ℝ+ ∧ ;10 ∈ ℝ+) → (𝐷 / ;10) ∈ ℝ+) | |
| 35 | 33, 34 | ax-mp 5 | . . . 4 ⊢ (𝐷 / ;10) ∈ ℝ+ |
| 36 | ltaddrp 13026 | . . . 4 ⊢ ((𝐶 ∈ ℝ ∧ (𝐷 / ;10) ∈ ℝ+) → 𝐶 < (𝐶 + (𝐷 / ;10))) | |
| 37 | 29, 35, 36 | mp2an 702 | . . 3 ⊢ 𝐶 < (𝐶 + (𝐷 / ;10)) |
| 38 | 2, 32 | sselii 3931 | . . . . . 6 ⊢ 𝐷 ∈ ℝ |
| 39 | 38, 5, 12 | redivcli 11952 | . . . . 5 ⊢ (𝐷 / ;10) ∈ ℝ |
| 40 | 29, 39 | readdcli 11191 | . . . 4 ⊢ (𝐶 + (𝐷 / ;10)) ∈ ℝ |
| 41 | 27, 29, 40 | lttri 11303 | . . 3 ⊢ (((𝐴 + (𝐵 / ;10)) < 𝐶 ∧ 𝐶 < (𝐶 + (𝐷 / ;10))) → (𝐴 + (𝐵 / ;10)) < (𝐶 + (𝐷 / ;10))) |
| 42 | 31, 37, 41 | mp2an 702 | . 2 ⊢ (𝐴 + (𝐵 / ;10)) < (𝐶 + (𝐷 / ;10)) |
| 43 | df-dp2 33010 | . 2 ⊢ _𝐴𝐵 = (𝐴 + (𝐵 / ;10)) | |
| 44 | df-dp2 33010 | . 2 ⊢ _𝐶𝐷 = (𝐶 + (𝐷 / ;10)) | |
| 45 | 42, 43, 44 | 3brtr4i 5127 | 1 ⊢ _𝐴𝐵 < _𝐶𝐷 |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 208 ∧ wa 399 ∈ wcel 2141 class class class wbr 5097 (class class class)co 7391 ℝcr 11066 0cc0 11067 1c1 11068 + caddc 11070 < clt 11210 ≤ cle 11211 / cdiv 11838 ℕ0cn0 12475 ℤcz 12562 ;cdc 12682 ℝ+crp 12987 _cdp2 33009 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-sep 5243 ax-nul 5253 ax-pow 5319 ax-pr 5387 ax-un 7713 ax-resscn 11124 ax-1cn 11125 ax-icn 11126 ax-addcl 11127 ax-addrcl 11128 ax-mulcl 11129 ax-mulrcl 11130 ax-mulcom 11131 ax-addass 11132 ax-mulass 11133 ax-distr 11134 ax-i2m1 11135 ax-1ne0 11136 ax-1rid 11137 ax-rnegex 11138 ax-rrecex 11139 ax-cnre 11140 ax-pre-lttri 11141 ax-pre-lttrn 11142 ax-pre-ltadd 11143 ax-pre-mulgt0 11144 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1098 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3061 df-ral 3076 df-rex 3086 df-rmo 3366 df-reu 3367 df-rab 3414 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4284 df-if 4478 df-pw 4554 df-sn 4580 df-pr 4582 df-op 4586 df-uni 4863 df-iun 4948 df-br 5098 df-opab 5160 df-mpt 5179 df-tr 5205 df-id 5538 df-eprel 5543 df-po 5551 df-so 5552 df-fr 5596 df-we 5598 df-xp 5649 df-rel 5650 df-cnv 5651 df-co 5652 df-dm 5653 df-rn 5654 df-res 5655 df-ima 5656 df-pred 6283 df-ord 6344 df-on 6345 df-lim 6346 df-suc 6347 df-iota 6472 df-fun 6518 df-fn 6519 df-f 6520 df-f1 6521 df-fo 6522 df-f1o 6523 df-fv 6524 df-riota 7348 df-ov 7394 df-oprab 7395 df-mpo 7396 df-om 7842 df-2nd 7966 df-frecs 8256 df-wrecs 8287 df-recs 8336 df-rdg 8375 df-er 8672 df-en 8922 df-dom 8923 df-sdom 8924 df-pnf 11212 df-mnf 11213 df-xr 11214 df-ltxr 11215 df-le 11216 df-sub 11410 df-neg 11411 df-div 11839 df-nn 12205 df-2 12274 df-3 12275 df-4 12276 df-5 12277 df-6 12278 df-7 12279 df-8 12280 df-9 12281 df-n0 12476 df-z 12563 df-dec 12683 df-rp 12988 df-dp2 33010 |
| This theorem is referenced by: dpltc 33045 |
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