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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 12592 | . . . . . . 7 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → 𝐵 ∈ ℤ) | |
2 | 1 | ad2antrr 723 | . . . . . 6 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → 𝐵 ∈ ℤ) |
3 | 2 | zred 12426 | . . . . 5 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → 𝐵 ∈ ℝ) |
4 | eluzel2 12587 | . . . . . . 7 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → 𝐴 ∈ ℤ) | |
5 | 4 | ad2antrr 723 | . . . . . 6 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → 𝐴 ∈ ℤ) |
6 | 5 | zred 12426 | . . . . 5 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → 𝐴 ∈ ℝ) |
7 | 3, 6 | resubcld 11403 | . . . 4 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → (𝐵 − 𝐴) ∈ ℝ) |
8 | simplr 766 | . . . . . 6 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → 𝐶 ∈ ℤ) | |
9 | 8 | zred 12426 | . . . . 5 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → 𝐶 ∈ ℝ) |
10 | 9, 6 | resubcld 11403 | . . . 4 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → (𝐶 − 𝐴) ∈ ℝ) |
11 | 1red 10976 | . . . 4 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → 1 ∈ ℝ) | |
12 | simpr 485 | . . . . 5 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → 𝐵 < 𝐶) | |
13 | 3, 9, 6, 12 | ltsub1dd 11587 | . . . 4 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → (𝐵 − 𝐴) < (𝐶 − 𝐴)) |
14 | 7, 10, 11, 13 | ltadd1dd 11586 | . . 3 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → ((𝐵 − 𝐴) + 1) < ((𝐶 − 𝐴) + 1)) |
15 | hashfz 14142 | . . . 4 ⊢ (𝐵 ∈ (ℤ≥‘𝐴) → (♯‘(𝐴...𝐵)) = ((𝐵 − 𝐴) + 1)) | |
16 | 15 | ad2antrr 723 | . . 3 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → (♯‘(𝐴...𝐵)) = ((𝐵 − 𝐴) + 1)) |
17 | 3, 9, 12 | ltled 11123 | . . . . . 6 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → 𝐵 ≤ 𝐶) |
18 | eluz2 12588 | . . . . . 6 ⊢ (𝐶 ∈ (ℤ≥‘𝐵) ↔ (𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ ∧ 𝐵 ≤ 𝐶)) | |
19 | 2, 8, 17, 18 | syl3anbrc 1342 | . . . . 5 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → 𝐶 ∈ (ℤ≥‘𝐵)) |
20 | simpll 764 | . . . . 5 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → 𝐵 ∈ (ℤ≥‘𝐴)) | |
21 | uztrn 12600 | . . . . 5 ⊢ ((𝐶 ∈ (ℤ≥‘𝐵) ∧ 𝐵 ∈ (ℤ≥‘𝐴)) → 𝐶 ∈ (ℤ≥‘𝐴)) | |
22 | 19, 20, 21 | syl2anc 584 | . . . 4 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → 𝐶 ∈ (ℤ≥‘𝐴)) |
23 | hashfz 14142 | . . . 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 5106 | . 2 ⊢ (((𝐵 ∈ (ℤ≥‘𝐴) ∧ 𝐶 ∈ ℤ) ∧ 𝐵 < 𝐶) → (♯‘(𝐴...𝐵)) < (♯‘(𝐴...𝐶))) |
26 | fzfi 13692 | . . 3 ⊢ (𝐴...𝐵) ∈ Fin | |
27 | fzfi 13692 | . . 3 ⊢ (𝐴...𝐶) ∈ Fin | |
28 | hashsdom 14096 | . . 3 ⊢ (((𝐴...𝐵) ∈ Fin ∧ (𝐴...𝐶) ∈ Fin) → ((♯‘(𝐴...𝐵)) < (♯‘(𝐴...𝐶)) ↔ (𝐴...𝐵) ≺ (𝐴...𝐶))) | |
29 | 26, 27, 28 | mp2an 689 | . 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 396 = wceq 1539 ∈ wcel 2106 class class class wbr 5074 ‘cfv 6433 (class class class)co 7275 ≺ csdm 8732 Fincfn 8733 1c1 10872 + caddc 10874 < clt 11009 ≤ cle 11010 − cmin 11205 ℤcz 12319 ℤ≥cuz 12582 ...cfz 13239 ♯chash 14044 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 ax-cnex 10927 ax-resscn 10928 ax-1cn 10929 ax-icn 10930 ax-addcl 10931 ax-addrcl 10932 ax-mulcl 10933 ax-mulrcl 10934 ax-mulcom 10935 ax-addass 10936 ax-mulass 10937 ax-distr 10938 ax-i2m1 10939 ax-1ne0 10940 ax-1rid 10941 ax-rnegex 10942 ax-rrecex 10943 ax-cnre 10944 ax-pre-lttri 10945 ax-pre-lttrn 10946 ax-pre-ltadd 10947 ax-pre-mulgt0 10948 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-nel 3050 df-ral 3069 df-rex 3070 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-pss 3906 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4840 df-int 4880 df-iun 4926 df-br 5075 df-opab 5137 df-mpt 5158 df-tr 5192 df-id 5489 df-eprel 5495 df-po 5503 df-so 5504 df-fr 5544 df-we 5546 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-pred 6202 df-ord 6269 df-on 6270 df-lim 6271 df-suc 6272 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-riota 7232 df-ov 7278 df-oprab 7279 df-mpo 7280 df-om 7713 df-1st 7831 df-2nd 7832 df-frecs 8097 df-wrecs 8128 df-recs 8202 df-rdg 8241 df-1o 8297 df-oadd 8301 df-er 8498 df-en 8734 df-dom 8735 df-sdom 8736 df-fin 8737 df-card 9697 df-pnf 11011 df-mnf 11012 df-xr 11013 df-ltxr 11014 df-le 11015 df-sub 11207 df-neg 11208 df-nn 11974 df-n0 12234 df-xnn0 12306 df-z 12320 df-uz 12583 df-fz 13240 df-hash 14045 |
This theorem is referenced by: irrapxlem1 40644 |
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