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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 12602 | . 2 ⊢ (𝜑 → 0 ∈ ℤ) | |
| 2 | chnpolfz.3 | . . . 4 ⊢ (𝜑 → 𝐴 ∈ Fin) | |
| 3 | hashcl 14391 | . . . 4 ⊢ (𝐴 ∈ Fin → (♯‘𝐴) ∈ ℕ0) | |
| 4 | 2, 3 | syl 18 | . . 3 ⊢ (𝜑 → (♯‘𝐴) ∈ ℕ0) |
| 5 | 4 | nn0zd 12615 | . 2 ⊢ (𝜑 → (♯‘𝐴) ∈ ℤ) |
| 6 | chnpolfz.2 | . . . . 5 ⊢ (𝜑 → 𝐵 ∈ ( < Chain 𝐴)) | |
| 7 | 6 | chnwrd 18663 | . . . 4 ⊢ (𝜑 → 𝐵 ∈ Word 𝐴) |
| 8 | lencl 14569 | . . . 4 ⊢ (𝐵 ∈ Word 𝐴 → (♯‘𝐵) ∈ ℕ0) | |
| 9 | 7, 8 | syl 18 | . . 3 ⊢ (𝜑 → (♯‘𝐵) ∈ ℕ0) |
| 10 | 9 | nn0zd 12615 | . 2 ⊢ (𝜑 → (♯‘𝐵) ∈ ℤ) |
| 11 | hashge0 14422 | . . 3 ⊢ (𝐵 ∈ ( < Chain 𝐴) → 0 ≤ (♯‘𝐵)) | |
| 12 | 6, 11 | syl 18 | . 2 ⊢ (𝜑 → 0 ≤ (♯‘𝐵)) |
| 13 | chnpolfz.1 | . . 3 ⊢ (𝜑 → < Po 𝐴) | |
| 14 | 13, 6, 2 | chnpolleha 18687 | . 2 ⊢ (𝜑 → (♯‘𝐵) ≤ (♯‘𝐴)) |
| 15 | 1, 5, 10, 12, 14 | elfzd 13542 | 1 ⊢ (𝜑 → (♯‘𝐵) ∈ (0...(♯‘𝐴))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2141 class class class wbr 5108 Po wpo 5567 ‘cfv 6536 (class class class)co 7410 Fincfn 8942 0cc0 11099 ≤ cle 11243 ℕ0cn0 12503 ...cfz 13534 ♯chash 14365 Word cword 14549 Chain cchn 18660 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1823 ax-4 1837 ax-5 1938 ax-6 1995 ax-7 2036 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-rep 5237 ax-sep 5256 ax-nul 5268 ax-pow 5336 ax-pr 5404 ax-un 7732 ax-cnex 11155 ax-resscn 11156 ax-1cn 11157 ax-icn 11158 ax-addcl 11159 ax-addrcl 11160 ax-mulcl 11161 ax-mulrcl 11162 ax-mulcom 11163 ax-addass 11164 ax-mulass 11165 ax-distr 11166 ax-i2m1 11167 ax-1ne0 11168 ax-1rid 11169 ax-rnegex 11170 ax-rrecex 11171 ax-cnre 11172 ax-pre-lttri 11173 ax-pre-lttrn 11174 ax-pre-ltadd 11175 ax-pre-mulgt0 11176 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1571 df-fal 1581 df-ex 1808 df-nf 1812 df-sb 2095 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3063 df-ral 3078 df-rex 3088 df-reu 3368 df-rab 3415 df-v 3455 df-sbc 3744 df-csb 3853 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-pss 3924 df-nul 4286 df-if 4487 df-pw 4563 df-sn 4589 df-pr 4591 df-op 4595 df-uni 4872 df-int 4912 df-iun 4957 df-br 5109 df-opab 5173 df-mpt 5192 df-tr 5218 df-id 5556 df-eprel 5561 df-po 5569 df-so 5570 df-fr 5614 df-we 5616 df-xp 5667 df-rel 5668 df-cnv 5669 df-co 5670 df-dm 5671 df-rn 5672 df-res 5673 df-ima 5674 df-pred 6302 df-ord 6363 df-on 6364 df-lim 6365 df-suc 6366 df-iota 6492 df-fun 6538 df-fn 6539 df-f 6540 df-f1 6541 df-fo 6542 df-f1o 6543 df-fv 6544 df-riota 7367 df-ov 7413 df-oprab 7414 df-mpo 7415 df-om 7862 df-1st 7985 df-2nd 7986 df-frecs 8277 df-wrecs 8308 df-recs 8357 df-rdg 8396 df-1o 8452 df-2o 8453 df-oadd 8456 df-er 8693 df-en 8943 df-dom 8944 df-sdom 8945 df-fin 8946 df-dju 9886 df-card 9924 df-pnf 11244 df-mnf 11245 df-xr 11246 df-ltxr 11247 df-le 11248 df-sub 11442 df-neg 11443 df-nn 12233 df-2 12302 df-n0 12504 df-xnn0 12577 df-z 12591 df-uz 12862 df-rp 13016 df-fz 13535 df-fzo 13682 df-hash 14366 df-word 14550 df-lsw 14599 df-concat 14607 df-s1 14633 df-substr 14678 df-pfx 14708 df-chn 18661 |
| This theorem is referenced by: chnfi 18689 |
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