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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 9364 | . 2 ⊢ 𝐶 = ;0𝐶 |
3 | 0nn0 9150 | . . 3 ⊢ 0 ∈ ℕ0 | |
4 | declei.1 | . . . 4 ⊢ 𝐴 ∈ ℕ | |
5 | 4 | nnnn0i 9143 | . . 3 ⊢ 𝐴 ∈ ℕ0 |
6 | declei.2 | . . 3 ⊢ 𝐵 ∈ ℕ0 | |
7 | declei.4 | . . 3 ⊢ 𝐶 ≤ 9 | |
8 | 4 | nngt0i 8908 | . . 3 ⊢ 0 < 𝐴 |
9 | 3, 5, 1, 6, 7, 8 | decleh 9377 | . 2 ⊢ ;0𝐶 ≤ ;𝐴𝐵 |
10 | 2, 9 | eqbrtri 4010 | 1 ⊢ 𝐶 ≤ ;𝐴𝐵 |
Colors of variables: wff set class |
Syntax hints: ∈ wcel 2141 class class class wbr 3989 0cc0 7774 ≤ cle 7955 ℕcn 8878 9c9 8936 ℕ0cn0 9135 ;cdc 9343 |
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 609 ax-in2 610 ax-io 704 ax-5 1440 ax-7 1441 ax-gen 1442 ax-ie1 1486 ax-ie2 1487 ax-8 1497 ax-10 1498 ax-11 1499 ax-i12 1500 ax-bndl 1502 ax-4 1503 ax-17 1519 ax-i9 1523 ax-ial 1527 ax-i5r 1528 ax-13 2143 ax-14 2144 ax-ext 2152 ax-sep 4107 ax-pow 4160 ax-pr 4194 ax-un 4418 ax-setind 4521 ax-cnex 7865 ax-resscn 7866 ax-1cn 7867 ax-1re 7868 ax-icn 7869 ax-addcl 7870 ax-addrcl 7871 ax-mulcl 7872 ax-mulrcl 7873 ax-addcom 7874 ax-mulcom 7875 ax-addass 7876 ax-mulass 7877 ax-distr 7878 ax-i2m1 7879 ax-0lt1 7880 ax-1rid 7881 ax-0id 7882 ax-rnegex 7883 ax-precex 7884 ax-cnre 7885 ax-pre-ltirr 7886 ax-pre-ltwlin 7887 ax-pre-lttrn 7888 ax-pre-ltadd 7890 ax-pre-mulgt0 7891 |
This theorem depends on definitions: df-bi 116 df-3or 974 df-3an 975 df-tru 1351 df-fal 1354 df-nf 1454 df-sb 1756 df-eu 2022 df-mo 2023 df-clab 2157 df-cleq 2163 df-clel 2166 df-nfc 2301 df-ne 2341 df-nel 2436 df-ral 2453 df-rex 2454 df-reu 2455 df-rab 2457 df-v 2732 df-sbc 2956 df-dif 3123 df-un 3125 df-in 3127 df-ss 3134 df-pw 3568 df-sn 3589 df-pr 3590 df-op 3592 df-uni 3797 df-int 3832 df-br 3990 df-opab 4051 df-id 4278 df-xp 4617 df-rel 4618 df-cnv 4619 df-co 4620 df-dm 4621 df-iota 5160 df-fun 5200 df-fv 5206 df-riota 5809 df-ov 5856 df-oprab 5857 df-mpo 5858 df-pnf 7956 df-mnf 7957 df-xr 7958 df-ltxr 7959 df-le 7960 df-sub 8092 df-neg 8093 df-inn 8879 df-2 8937 df-3 8938 df-4 8939 df-5 8940 df-6 8941 df-7 8942 df-8 8943 df-9 8944 df-n0 9136 df-z 9213 df-dec 9344 |
This theorem is referenced by: (None) |
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