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| Mirrors > Home > MPE Home > Th. List > chnpolfz | Structured version Visualization version GIF version | ||
| Description: Provided that chain's relation is a partial order, the chain length is restricted to a specific integer range. (Contributed by Ender Ting, 20-Jan-2026.) |
| Ref | Expression |
|---|---|
| chnpolfz.1 | ⊢ (𝜑 → < Po 𝐴) |
| chnpolfz.2 | ⊢ (𝜑 → 𝐵 ∈ ( < Chain 𝐴)) |
| chnpolfz.3 | ⊢ (𝜑 → 𝐴 ∈ Fin) |
| Ref | Expression |
|---|---|
| chnpolfz | ⊢ (𝜑 → (♯‘𝐵) ∈ (0...(♯‘𝐴))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0zd 12590 | . 2 ⊢ (𝜑 → 0 ∈ ℤ) | |
| 2 | chnpolfz.3 | . . . 4 ⊢ (𝜑 → 𝐴 ∈ Fin) | |
| 3 | hashcl 14379 | . . . 4 ⊢ (𝐴 ∈ Fin → (♯‘𝐴) ∈ ℕ0) | |
| 4 | 2, 3 | syl 17 | . . 3 ⊢ (𝜑 → (♯‘𝐴) ∈ ℕ0) |
| 5 | 4 | nn0zd 12603 | . 2 ⊢ (𝜑 → (♯‘𝐴) ∈ ℤ) |
| 6 | chnpolfz.2 | . . . . 5 ⊢ (𝜑 → 𝐵 ∈ ( < Chain 𝐴)) | |
| 7 | 6 | chnwrd 18650 | . . . 4 ⊢ (𝜑 → 𝐵 ∈ Word 𝐴) |
| 8 | lencl 14556 | . . . 4 ⊢ (𝐵 ∈ Word 𝐴 → (♯‘𝐵) ∈ ℕ0) | |
| 9 | 7, 8 | syl 17 | . . 3 ⊢ (𝜑 → (♯‘𝐵) ∈ ℕ0) |
| 10 | 9 | nn0zd 12603 | . 2 ⊢ (𝜑 → (♯‘𝐵) ∈ ℤ) |
| 11 | hashge0 14410 | . . 3 ⊢ (𝐵 ∈ ( < Chain 𝐴) → 0 ≤ (♯‘𝐵)) | |
| 12 | 6, 11 | syl 17 | . 2 ⊢ (𝜑 → 0 ≤ (♯‘𝐵)) |
| 13 | chnpolfz.1 | . . 3 ⊢ (𝜑 → < Po 𝐴) | |
| 14 | 13, 6, 2 | chnpolleha 18674 | . 2 ⊢ (𝜑 → (♯‘𝐵) ≤ (♯‘𝐴)) |
| 15 | 1, 5, 10, 12, 14 | elfzd 13530 | 1 ⊢ (𝜑 → (♯‘𝐵) ∈ (0...(♯‘𝐴))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2143 class class class wbr 5101 Po wpo 5554 ‘cfv 6521 (class class class)co 7396 Fincfn 8927 0cc0 11084 ≤ cle 11228 ℕ0cn0 12491 ...cfz 13522 ♯chash 14353 Word cword 14536 Chain cchn 18647 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1816 ax-4 1830 ax-5 1931 ax-6 1988 ax-7 2029 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-rep 5228 ax-sep 5247 ax-nul 5257 ax-pow 5323 ax-pr 5391 ax-un 7718 ax-cnex 11140 ax-resscn 11141 ax-1cn 11142 ax-icn 11143 ax-addcl 11144 ax-addrcl 11145 ax-mulcl 11146 ax-mulrcl 11147 ax-mulcom 11148 ax-addass 11149 ax-mulass 11150 ax-distr 11151 ax-i2m1 11152 ax-1ne0 11153 ax-1rid 11154 ax-rnegex 11155 ax-rrecex 11156 ax-cnre 11157 ax-pre-lttri 11158 ax-pre-lttrn 11159 ax-pre-ltadd 11160 ax-pre-mulgt0 11161 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1100 df-3an 1101 df-tru 1564 df-fal 1574 df-ex 1801 df-nf 1805 df-sb 2092 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-nel 3063 df-ral 3078 df-rex 3088 df-reu 3369 df-rab 3416 df-v 3457 df-sbc 3746 df-csb 3854 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-pss 3925 df-nul 4287 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-int 4907 df-iun 4952 df-br 5102 df-opab 5164 df-mpt 5183 df-tr 5209 df-id 5543 df-eprel 5548 df-po 5556 df-so 5557 df-fr 5601 df-we 5603 df-xp 5654 df-rel 5655 df-cnv 5656 df-co 5657 df-dm 5658 df-rn 5659 df-res 5660 df-ima 5661 df-pred 6288 df-ord 6349 df-on 6350 df-lim 6351 df-suc 6352 df-iota 6477 df-fun 6523 df-fn 6524 df-f 6525 df-f1 6526 df-fo 6527 df-f1o 6528 df-fv 6529 df-riota 7353 df-ov 7399 df-oprab 7400 df-mpo 7401 df-om 7847 df-1st 7970 df-2nd 7971 df-frecs 8262 df-wrecs 8293 df-recs 8342 df-rdg 8381 df-1o 8437 df-2o 8438 df-oadd 8441 df-er 8678 df-en 8928 df-dom 8929 df-sdom 8930 df-fin 8931 df-dju 9871 df-card 9909 df-pnf 11229 df-mnf 11230 df-xr 11231 df-ltxr 11232 df-le 11233 df-sub 11427 df-neg 11428 df-nn 12221 df-2 12290 df-n0 12492 df-xnn0 12565 df-z 12579 df-uz 12850 df-rp 13004 df-fz 13523 df-fzo 13670 df-hash 14354 df-word 14537 df-lsw 14586 df-concat 14594 df-s1 14620 df-substr 14665 df-pfx 14695 df-chn 18648 |
| This theorem is referenced by: chnfi 18676 |
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