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Mirrors > Home > ILE Home > Th. List > declei | GIF version |
Description: Comparing a digit to a decimal integer. (Contributed by AV, 17-Aug-2021.) |
Ref | Expression |
---|---|
declei.1 | ⊢ 𝐴 ∈ ℕ |
declei.2 | ⊢ 𝐵 ∈ ℕ0 |
declei.3 | ⊢ 𝐶 ∈ ℕ0 |
declei.4 | ⊢ 𝐶 ≤ 9 |
Ref | Expression |
---|---|
declei | ⊢ 𝐶 ≤ ;𝐴𝐵 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | declei.3 | . . 3 ⊢ 𝐶 ∈ ℕ0 | |
2 | 1 | dec0h 9334 | . 2 ⊢ 𝐶 = ;0𝐶 |
3 | 0nn0 9120 | . . 3 ⊢ 0 ∈ ℕ0 | |
4 | declei.1 | . . . 4 ⊢ 𝐴 ∈ ℕ | |
5 | 4 | nnnn0i 9113 | . . 3 ⊢ 𝐴 ∈ ℕ0 |
6 | declei.2 | . . 3 ⊢ 𝐵 ∈ ℕ0 | |
7 | declei.4 | . . 3 ⊢ 𝐶 ≤ 9 | |
8 | 4 | nngt0i 8878 | . . 3 ⊢ 0 < 𝐴 |
9 | 3, 5, 1, 6, 7, 8 | decleh 9347 | . 2 ⊢ ;0𝐶 ≤ ;𝐴𝐵 |
10 | 2, 9 | eqbrtri 3997 | 1 ⊢ 𝐶 ≤ ;𝐴𝐵 |
Colors of variables: wff set class |
Syntax hints: ∈ wcel 2135 class class class wbr 3976 0cc0 7744 ≤ cle 7925 ℕcn 8848 9c9 8906 ℕ0cn0 9105 ;cdc 9313 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 604 ax-in2 605 ax-io 699 ax-5 1434 ax-7 1435 ax-gen 1436 ax-ie1 1480 ax-ie2 1481 ax-8 1491 ax-10 1492 ax-11 1493 ax-i12 1494 ax-bndl 1496 ax-4 1497 ax-17 1513 ax-i9 1517 ax-ial 1521 ax-i5r 1522 ax-13 2137 ax-14 2138 ax-ext 2146 ax-sep 4094 ax-pow 4147 ax-pr 4181 ax-un 4405 ax-setind 4508 ax-cnex 7835 ax-resscn 7836 ax-1cn 7837 ax-1re 7838 ax-icn 7839 ax-addcl 7840 ax-addrcl 7841 ax-mulcl 7842 ax-mulrcl 7843 ax-addcom 7844 ax-mulcom 7845 ax-addass 7846 ax-mulass 7847 ax-distr 7848 ax-i2m1 7849 ax-0lt1 7850 ax-1rid 7851 ax-0id 7852 ax-rnegex 7853 ax-precex 7854 ax-cnre 7855 ax-pre-ltirr 7856 ax-pre-ltwlin 7857 ax-pre-lttrn 7858 ax-pre-ltadd 7860 ax-pre-mulgt0 7861 |
This theorem depends on definitions: df-bi 116 df-3or 968 df-3an 969 df-tru 1345 df-fal 1348 df-nf 1448 df-sb 1750 df-eu 2016 df-mo 2017 df-clab 2151 df-cleq 2157 df-clel 2160 df-nfc 2295 df-ne 2335 df-nel 2430 df-ral 2447 df-rex 2448 df-reu 2449 df-rab 2451 df-v 2723 df-sbc 2947 df-dif 3113 df-un 3115 df-in 3117 df-ss 3124 df-pw 3555 df-sn 3576 df-pr 3577 df-op 3579 df-uni 3784 df-int 3819 df-br 3977 df-opab 4038 df-id 4265 df-xp 4604 df-rel 4605 df-cnv 4606 df-co 4607 df-dm 4608 df-iota 5147 df-fun 5184 df-fv 5190 df-riota 5792 df-ov 5839 df-oprab 5840 df-mpo 5841 df-pnf 7926 df-mnf 7927 df-xr 7928 df-ltxr 7929 df-le 7930 df-sub 8062 df-neg 8063 df-inn 8849 df-2 8907 df-3 8908 df-4 8909 df-5 8910 df-6 8911 df-7 8912 df-8 8913 df-9 8914 df-n0 9106 df-z 9183 df-dec 9314 |
This theorem is referenced by: (None) |
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