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| Mirrors > Home > ILE Home > Th. List > decltc | GIF version | ||
| Description: Comparing two decimal integers (unequal higher places). (Contributed by Mario Carneiro, 18-Feb-2014.) (Revised by AV, 6-Sep-2021.) |
| Ref | Expression |
|---|---|
| declt.a | ⊢ 𝐴 ∈ ℕ0 |
| declt.b | ⊢ 𝐵 ∈ ℕ0 |
| decltc.c | ⊢ 𝐶 ∈ ℕ0 |
| decltc.d | ⊢ 𝐷 ∈ ℕ0 |
| decltc.s | ⊢ 𝐶 < ;10 |
| decltc.l | ⊢ 𝐴 < 𝐵 |
| Ref | Expression |
|---|---|
| decltc | ⊢ ;𝐴𝐶 < ;𝐵𝐷 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 10nn 9808 | . . 3 ⊢ ;10 ∈ ℕ | |
| 2 | declt.a | . . 3 ⊢ 𝐴 ∈ ℕ0 | |
| 3 | declt.b | . . 3 ⊢ 𝐵 ∈ ℕ0 | |
| 4 | decltc.c | . . 3 ⊢ 𝐶 ∈ ℕ0 | |
| 5 | decltc.d | . . 3 ⊢ 𝐷 ∈ ℕ0 | |
| 6 | decltc.s | . . 3 ⊢ 𝐶 < ;10 | |
| 7 | decltc.l | . . 3 ⊢ 𝐴 < 𝐵 | |
| 8 | 1, 2, 3, 4, 5, 6, 7 | numltc 9819 | . 2 ⊢ ((;10 · 𝐴) + 𝐶) < ((;10 · 𝐵) + 𝐷) |
| 9 | dfdec10 9792 | . 2 ⊢ ;𝐴𝐶 = ((;10 · 𝐴) + 𝐶) | |
| 10 | dfdec10 9792 | . 2 ⊢ ;𝐵𝐷 = ((;10 · 𝐵) + 𝐷) | |
| 11 | 8, 9, 10 | 3brtr4i 4161 | 1 ⊢ ;𝐴𝐶 < ;𝐵𝐷 |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: ∈ wcel 2209 class class class wbr 4131 (class class class)co 6088 0cc0 8186 1c1 8187 + caddc 8189 · cmul 8191 < clt 8367 ℕ0cn0 9575 ;cdc 9789 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4251 ax-pow 4313 ax-pr 4348 ax-un 4580 ax-setind 4686 ax-cnex 8277 ax-resscn 8278 ax-1cn 8279 ax-1re 8280 ax-icn 8281 ax-addcl 8282 ax-addrcl 8283 ax-mulcl 8284 ax-mulrcl 8285 ax-addcom 8286 ax-mulcom 8287 ax-addass 8288 ax-mulass 8289 ax-distr 8290 ax-i2m1 8291 ax-0lt1 8292 ax-1rid 8293 ax-0id 8294 ax-rnegex 8295 ax-precex 8296 ax-cnre 8297 ax-pre-ltirr 8298 ax-pre-ltwlin 8299 ax-pre-lttrn 8300 ax-pre-ltadd 8302 ax-pre-mulgt0 8303 |
| This proof depends on definitions: df-bi 117 df-3or 1010 df-3an 1011 df-tru 1405 df-fal 1408 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-nel 2516 df-ral 2533 df-rex 2534 df-reu 2535 df-rab 2537 df-v 2823 df-sbc 3052 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-int 3971 df-br 4132 df-opab 4194 df-id 4440 df-xp 4782 df-rel 4783 df-cnv 4784 df-co 4785 df-dm 4786 df-iota 5340 df-fun 5382 df-fv 5388 df-riota 6041 df-ov 6091 df-oprab 6092 df-mpo 6093 df-pnf 8369 df-mnf 8370 df-xr 8371 df-ltxr 8372 df-le 8373 df-sub 8507 df-neg 8508 df-inn 9315 df-2 9373 df-3 9374 df-4 9375 df-5 9376 df-6 9377 df-7 9378 df-8 9379 df-9 9380 df-n0 9576 df-z 9657 df-dec 9790 |
| This theorem is used by: declth 9823 3decltc 9826 2expltfac 13249 11prm 13259 13prm 13260 17prm 13261 19prm 13262 37prm 13265 43prm 13266 83prm 13267 317prm 13270 631prm 13271 log2ublog2 16236 bclbnd 16319 bpos1 16322 bposlem8 16330 |
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