Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > fzsdom2 | Structured version Visualization version GIF version |
Description: Condition for finite ranges to have a strict dominance relation. (Contributed by Stefan O'Rear, 12-Sep-2014.) (Revised by Mario Carneiro, 15-Apr-2015.) |
Ref | Expression |
---|---|
fzsdom2 | ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → (𝐴...𝐵) ≺ (𝐴...𝐶)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eluzelz 12521 | . . . . . . 7 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → 𝐵 ∈ ℤ) | |
2 | 1 | ad2antrr 722 | . . . . . 6 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → 𝐵 ∈ ℤ) |
3 | 2 | zred 12355 | . . . . 5 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → 𝐵 ∈ ℝ) |
4 | eluzel2 12516 | . . . . . . 7 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → 𝐴 ∈ ℤ) | |
5 | 4 | ad2antrr 722 | . . . . . 6 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → 𝐴 ∈ ℤ) |
6 | 5 | zred 12355 | . . . . 5 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → 𝐴 ∈ ℝ) |
7 | 3, 6 | resubcld 11333 | . . . 4 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → (𝐵 − 𝐴) ∈ ℝ) |
8 | simplr 765 | . . . . . 6 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → 𝐶 ∈ ℤ) | |
9 | 8 | zred 12355 | . . . . 5 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → 𝐶 ∈ ℝ) |
10 | 9, 6 | resubcld 11333 | . . . 4 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → (𝐶 − 𝐴) ∈ ℝ) |
11 | 1red 10907 | . . . 4 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → 1 ∈ ℝ) | |
12 | simpr 484 | . . . . 5 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → 𝐵 < 𝐶) | |
13 | 3, 9, 6, 12 | ltsub1dd 11517 | . . . 4 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → (𝐵 − 𝐴) < (𝐶 − 𝐴)) |
14 | 7, 10, 11, 13 | ltadd1dd 11516 | . . 3 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → ((𝐵 − 𝐴) + 1) < ((𝐶 − 𝐴) + 1)) |
15 | hashfz 14070 | . . . 4 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → (♯‘(𝐴...𝐵)) = ((𝐵 − 𝐴) + 1)) | |
16 | 15 | ad2antrr 722 | . . 3 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → (♯‘(𝐴...𝐵)) = ((𝐵 − 𝐴) + 1)) |
17 | 3, 9, 12 | ltled 11053 | . . . . . 6 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → 𝐵 ≤ 𝐶) |
18 | eluz2 12517 | . . . . . 6 ⊢ (𝐶 ∈ (ℤ≥‘𝐵) ↔ (𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ ∧ 𝐵 ≤ 𝐶)) | |
19 | 2, 8, 17, 18 | syl3anbrc 1341 | . . . . 5 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → 𝐶 ∈ (ℤ≥‘𝐵)) |
20 | simpll 763 | . . . . 5 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → 𝐵 ∈ (ℤ≥‘𝐴)) | |
21 | uztrn 12529 | . . . . 5 ⊢ ((𝐶 ∈ (ℤ≥‘𝐵) ∧ 𝐵 ∈ (ℤ≥‘𝐴)) → 𝐶 ∈ (ℤ≥‘𝐴)) | |
22 | 19, 20, 21 | syl2anc 583 | . . . 4 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → 𝐶 ∈ (ℤ≥‘𝐴)) |
23 | hashfz 14070 | . . . 4 ⊢ (𝐶 ∈ (ℤ≥‘𝐴) → (♯‘(𝐴...𝐶)) = ((𝐶 − 𝐴) + 1)) | |
24 | 22, 23 | syl 17 | . . 3 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → (♯‘(𝐴...𝐶)) = ((𝐶 − 𝐴) + 1)) |
25 | 14, 16, 24 | 3brtr4d 5102 | . 2 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → (♯‘(𝐴...𝐵)) < (♯‘(𝐴...𝐶))) |
26 | fzfi 13620 | . . 3 ⊢ (𝐴...𝐵) ∈ Fin | |
27 | fzfi 13620 | . . 3 ⊢ (𝐴...𝐶) ∈ Fin | |
28 | hashsdom 14024 | . . 3 ⊢ (((𝐴...𝐵) ∈ Fin ∧ (𝐴...𝐶) ∈ Fin) → ((♯‘(𝐴...𝐵)) < (♯‘(𝐴...𝐶)) ↔ (𝐴...𝐵) ≺ (𝐴...𝐶))) | |
29 | 26, 27, 28 | mp2an 688 | . 2 ⊢ ((♯‘(𝐴...𝐵)) < (♯‘(𝐴...𝐶)) ↔ (𝐴...𝐵) ≺ (𝐴...𝐶)) |
30 | 25, 29 | sylib 217 | 1 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → (𝐴...𝐵) ≺ (𝐴...𝐶)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 395 = wceq 1539 ∈ wcel 2108 class class class wbr 5070 ‘cfv 6418 (class class class)co 7255 ≺ csdm 8690 Fincfn 8691 1c1 10803 + caddc 10805 < clt 10940 ≤ cle 10941 − cmin 11135 ℤcz 12249 ℤ≥cuz 12511 ...cfz 13168 ♯chash 13972 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 ax-cnex 10858 ax-resscn 10859 ax-1cn 10860 ax-icn 10861 ax-addcl 10862 ax-addrcl 10863 ax-mulcl 10864 ax-mulrcl 10865 ax-mulcom 10866 ax-addass 10867 ax-mulass 10868 ax-distr 10869 ax-i2m1 10870 ax-1ne0 10871 ax-1rid 10872 ax-rnegex 10873 ax-rrecex 10874 ax-cnre 10875 ax-pre-lttri 10876 ax-pre-lttrn 10877 ax-pre-ltadd 10878 ax-pre-mulgt0 10879 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-nel 3049 df-ral 3068 df-rex 3069 df-reu 3070 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3902 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-tp 4563 df-op 4565 df-uni 4837 df-int 4877 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-tr 5188 df-id 5480 df-eprel 5486 df-po 5494 df-so 5495 df-fr 5535 df-we 5537 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-pred 6191 df-ord 6254 df-on 6255 df-lim 6256 df-suc 6257 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-riota 7212 df-ov 7258 df-oprab 7259 df-mpo 7260 df-om 7688 df-1st 7804 df-2nd 7805 df-frecs 8068 df-wrecs 8099 df-recs 8173 df-rdg 8212 df-1o 8267 df-oadd 8271 df-er 8456 df-en 8692 df-dom 8693 df-sdom 8694 df-fin 8695 df-card 9628 df-pnf 10942 df-mnf 10943 df-xr 10944 df-ltxr 10945 df-le 10946 df-sub 11137 df-neg 11138 df-nn 11904 df-n0 12164 df-xnn0 12236 df-z 12250 df-uz 12512 df-fz 13169 df-hash 13973 |
This theorem is referenced by: irrapxlem1 40560 |
Copyright terms: Public domain | W3C validator |