| Mathbox for Thierry Arnoux |
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| Mirrors > Home > MPE Home > Th. List > Mathboxes > chnlt | Structured version Visualization version GIF version | ||
| Description: Compare any two elements in a chain. (Contributed by Thierry Arnoux, 19-Jun-2025.) |
| Ref | Expression |
|---|---|
| chnlt.1 | ⊢ (𝜑 → < Po 𝐴) |
| chnlt.2 | ⊢ (𝜑 → 𝐶 ∈ ( < Chain𝐴)) |
| chnlt.3 | ⊢ (𝜑 → 𝐽 ∈ (0..^(♯‘𝐶))) |
| chnlt.4 | ⊢ (𝜑 → 𝐼 ∈ (0..^𝐽)) |
| Ref | Expression |
|---|---|
| chnlt | ⊢ (𝜑 → (𝐶‘𝐼) < (𝐶‘𝐽)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | chnlt.1 | . . 3 ⊢ (𝜑 → < Po 𝐴) | |
| 2 | chnlt.2 | . . . 4 ⊢ (𝜑 → 𝐶 ∈ ( < Chain𝐴)) | |
| 3 | chnlt.3 | . . . . 5 ⊢ (𝜑 → 𝐽 ∈ (0..^(♯‘𝐶))) | |
| 4 | fzofzp1 13701 | . . . . 5 ⊢ (𝐽 ∈ (0..^(♯‘𝐶)) → (𝐽 + 1) ∈ (0...(♯‘𝐶))) | |
| 5 | 3, 4 | syl 17 | . . . 4 ⊢ (𝜑 → (𝐽 + 1) ∈ (0...(♯‘𝐶))) |
| 6 | 2, 5 | pfxchn 32908 | . . 3 ⊢ (𝜑 → (𝐶 prefix (𝐽 + 1)) ∈ ( < Chain𝐴)) |
| 7 | chnlt.4 | . . . 4 ⊢ (𝜑 → 𝐼 ∈ (0..^𝐽)) | |
| 8 | fzossz 13616 | . . . . . . . 8 ⊢ (0..^(♯‘𝐶)) ⊆ ℤ | |
| 9 | 8, 3 | sselid 3941 | . . . . . . 7 ⊢ (𝜑 → 𝐽 ∈ ℤ) |
| 10 | 9 | zcnd 12615 | . . . . . 6 ⊢ (𝜑 → 𝐽 ∈ ℂ) |
| 11 | 1cnd 11145 | . . . . . 6 ⊢ (𝜑 → 1 ∈ ℂ) | |
| 12 | 2 | chnwrd 32906 | . . . . . . 7 ⊢ (𝜑 → 𝐶 ∈ Word 𝐴) |
| 13 | pfxlen 14624 | . . . . . . 7 ⊢ ((𝐶 ∈ Word 𝐴 ∧ (𝐽 + 1) ∈ (0...(♯‘𝐶))) → (♯‘(𝐶 prefix (𝐽 + 1))) = (𝐽 + 1)) | |
| 14 | 12, 5, 13 | syl2anc 584 | . . . . . 6 ⊢ (𝜑 → (♯‘(𝐶 prefix (𝐽 + 1))) = (𝐽 + 1)) |
| 15 | 10, 11, 14 | mvrraddd 11566 | . . . . 5 ⊢ (𝜑 → ((♯‘(𝐶 prefix (𝐽 + 1))) − 1) = 𝐽) |
| 16 | 15 | oveq2d 7385 | . . . 4 ⊢ (𝜑 → (0..^((♯‘(𝐶 prefix (𝐽 + 1))) − 1)) = (0..^𝐽)) |
| 17 | 7, 16 | eleqtrrd 2831 | . . 3 ⊢ (𝜑 → 𝐼 ∈ (0..^((♯‘(𝐶 prefix (𝐽 + 1))) − 1))) |
| 18 | 1, 6, 17 | chnub 32911 | . 2 ⊢ (𝜑 → ((𝐶 prefix (𝐽 + 1))‘𝐼) < (lastS‘(𝐶 prefix (𝐽 + 1)))) |
| 19 | fzo0ssnn0 13683 | . . . . . 6 ⊢ (0..^(♯‘𝐶)) ⊆ ℕ0 | |
| 20 | 19, 3 | sselid 3941 | . . . . 5 ⊢ (𝜑 → 𝐽 ∈ ℕ0) |
| 21 | fzossfzop1 13680 | . . . . 5 ⊢ (𝐽 ∈ ℕ0 → (0..^𝐽) ⊆ (0..^(𝐽 + 1))) | |
| 22 | 20, 21 | syl 17 | . . . 4 ⊢ (𝜑 → (0..^𝐽) ⊆ (0..^(𝐽 + 1))) |
| 23 | 22, 7 | sseldd 3944 | . . 3 ⊢ (𝜑 → 𝐼 ∈ (0..^(𝐽 + 1))) |
| 24 | pfxfv 14623 | . . 3 ⊢ ((𝐶 ∈ Word 𝐴 ∧ (𝐽 + 1) ∈ (0...(♯‘𝐶)) ∧ 𝐼 ∈ (0..^(𝐽 + 1))) → ((𝐶 prefix (𝐽 + 1))‘𝐼) = (𝐶‘𝐼)) | |
| 25 | 12, 5, 23, 24 | syl3anc 1373 | . 2 ⊢ (𝜑 → ((𝐶 prefix (𝐽 + 1))‘𝐼) = (𝐶‘𝐼)) |
| 26 | lencl 14474 | . . . . . 6 ⊢ (𝐶 ∈ Word 𝐴 → (♯‘𝐶) ∈ ℕ0) | |
| 27 | 12, 26 | syl 17 | . . . . 5 ⊢ (𝜑 → (♯‘𝐶) ∈ ℕ0) |
| 28 | fz0add1fz1 13672 | . . . . 5 ⊢ (((♯‘𝐶) ∈ ℕ0 ∧ 𝐽 ∈ (0..^(♯‘𝐶))) → (𝐽 + 1) ∈ (1...(♯‘𝐶))) | |
| 29 | 27, 3, 28 | syl2anc 584 | . . . 4 ⊢ (𝜑 → (𝐽 + 1) ∈ (1...(♯‘𝐶))) |
| 30 | pfxfvlsw 14636 | . . . 4 ⊢ ((𝐶 ∈ Word 𝐴 ∧ (𝐽 + 1) ∈ (1...(♯‘𝐶))) → (lastS‘(𝐶 prefix (𝐽 + 1))) = (𝐶‘((𝐽 + 1) − 1))) | |
| 31 | 12, 29, 30 | syl2anc 584 | . . 3 ⊢ (𝜑 → (lastS‘(𝐶 prefix (𝐽 + 1))) = (𝐶‘((𝐽 + 1) − 1))) |
| 32 | 10, 11 | pncand 11510 | . . . 4 ⊢ (𝜑 → ((𝐽 + 1) − 1) = 𝐽) |
| 33 | 32 | fveq2d 6844 | . . 3 ⊢ (𝜑 → (𝐶‘((𝐽 + 1) − 1)) = (𝐶‘𝐽)) |
| 34 | 31, 33 | eqtrd 2764 | . 2 ⊢ (𝜑 → (lastS‘(𝐶 prefix (𝐽 + 1))) = (𝐶‘𝐽)) |
| 35 | 18, 25, 34 | 3brtr3d 5133 | 1 ⊢ (𝜑 → (𝐶‘𝐼) < (𝐶‘𝐽)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1540 ∈ wcel 2109 ⊆ wss 3911 class class class wbr 5102 Po wpo 5537 ‘cfv 6499 (class class class)co 7369 0cc0 11044 1c1 11045 + caddc 11047 − cmin 11381 ℕ0cn0 12418 ℤcz 12505 ...cfz 13444 ..^cfzo 13591 ♯chash 14271 Word cword 14454 lastSclsw 14503 prefix cpfx 14611 Chaincchn 32903 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2701 ax-rep 5229 ax-sep 5246 ax-nul 5256 ax-pow 5315 ax-pr 5382 ax-un 7691 ax-cnex 11100 ax-resscn 11101 ax-1cn 11102 ax-icn 11103 ax-addcl 11104 ax-addrcl 11105 ax-mulcl 11106 ax-mulrcl 11107 ax-mulcom 11108 ax-addass 11109 ax-mulass 11110 ax-distr 11111 ax-i2m1 11112 ax-1ne0 11113 ax-1rid 11114 ax-rnegex 11115 ax-rrecex 11116 ax-cnre 11117 ax-pre-lttri 11118 ax-pre-lttrn 11119 ax-pre-ltadd 11120 ax-pre-mulgt0 11121 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2533 df-eu 2562 df-clab 2708 df-cleq 2721 df-clel 2803 df-nfc 2878 df-ne 2926 df-nel 3030 df-ral 3045 df-rex 3054 df-reu 3352 df-rab 3403 df-v 3446 df-sbc 3751 df-csb 3860 df-dif 3914 df-un 3916 df-in 3918 df-ss 3928 df-pss 3931 df-nul 4293 df-if 4485 df-pw 4561 df-sn 4586 df-pr 4588 df-op 4592 df-uni 4868 df-int 4907 df-iun 4953 df-br 5103 df-opab 5165 df-mpt 5184 df-tr 5210 df-id 5526 df-eprel 5531 df-po 5539 df-so 5540 df-fr 5584 df-we 5586 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-pred 6262 df-ord 6323 df-on 6324 df-lim 6325 df-suc 6326 df-iota 6452 df-fun 6501 df-fn 6502 df-f 6503 df-f1 6504 df-fo 6505 df-f1o 6506 df-fv 6507 df-riota 7326 df-ov 7372 df-oprab 7373 df-mpo 7374 df-om 7823 df-1st 7947 df-2nd 7948 df-frecs 8237 df-wrecs 8268 df-recs 8317 df-rdg 8355 df-1o 8411 df-er 8648 df-en 8896 df-dom 8897 df-sdom 8898 df-fin 8899 df-card 9868 df-pnf 11186 df-mnf 11187 df-xr 11188 df-ltxr 11189 df-le 11190 df-sub 11383 df-neg 11384 df-nn 12163 df-n0 12419 df-xnn0 12492 df-z 12506 df-uz 12770 df-rp 12928 df-fz 13445 df-fzo 13592 df-hash 14272 df-word 14455 df-lsw 14504 df-concat 14512 df-s1 14537 df-substr 14582 df-pfx 14612 df-chn 32904 |
| This theorem is referenced by: chnso 32913 |
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