cycpmco2lem2 - Mathbox for Thierry Arnoux

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Theorem cycpmco2lem2 33360

Description: Lemma for cycpmco2 33366. (Contributed by Thierry Arnoux, 4-Jan-2024.)

**Hypotheses**
Ref	Expression
cycpmco2.c	⊢ 𝑀 = (toCyc‘𝐷)
cycpmco2.s	⊢ 𝑆 = (SymGrp‘𝐷)
cycpmco2.d	⊢ (𝜑 → 𝐷 ∈ 𝑉)
cycpmco2.w	⊢ (𝜑 → 𝑊 ∈ dom 𝑀)
cycpmco2.i	⊢ (𝜑 → 𝐼 ∈ (𝐷 ∖ ran 𝑊))
cycpmco2.j	⊢ (𝜑 → 𝐽 ∈ ran 𝑊)
cycpmco2.e	⊢ 𝐸 = ((^◡𝑊‘𝐽) + 1)
cycpmco2.1	⊢ 𝑈 = (𝑊 splice ⟨𝐸, 𝐸, ⟨“𝐼”⟩⟩)

**Assertion**
Ref	Expression
cycpmco2lem2	⊢ (𝜑 → (𝑈‘𝐸) = 𝐼)

Proof of Theorem cycpmco2lem2 Dummy variable 𝑤 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		cycpmco2.1	. . . . 5 ⊢ 𝑈 = (𝑊 splice ⟨𝐸, 𝐸, ⟨“𝐼”⟩⟩)
2		cycpmco2.w	. . . . . 6 ⊢ (𝜑 → 𝑊 ∈ dom 𝑀)
3		cycpmco2.e	. . . . . . 7 ⊢ 𝐸 = ((^◡𝑊‘𝐽) + 1)
4		ovexd 7435	. . . . . . 7 ⊢ (𝜑 → ((^◡𝑊‘𝐽) + 1) ∈ V)
5	3, 4	eqeltrid 2869	. . . . . 6 ⊢ (𝜑 → 𝐸 ∈ V)
6		cycpmco2.i	. . . . . . . 8 ⊢ (𝜑 → 𝐼 ∈ (𝐷 ∖ ran 𝑊))
7	6	eldifad 3919	. . . . . . 7 ⊢ (𝜑 → 𝐼 ∈ 𝐷)
8	7	s1cld 14631	. . . . . 6 ⊢ (𝜑 → ⟨“𝐼”⟩ ∈ Word 𝐷)
9		splval 14778	. . . . . 6 ⊢ ((𝑊 ∈ dom 𝑀 ∧ (𝐸 ∈ V ∧ 𝐸 ∈ V ∧ ⟨“𝐼”⟩ ∈ Word 𝐷)) → (𝑊 splice ⟨𝐸, 𝐸, ⟨“𝐼”⟩⟩) = (((𝑊 prefix 𝐸) ++ ⟨“𝐼”⟩) ++ (𝑊 substr ⟨𝐸, (♯‘𝑊)⟩)))
10	2, 5, 5, 8, 9	syl13anc 1395	. . . . 5 ⊢ (𝜑 → (𝑊 splice ⟨𝐸, 𝐸, ⟨“𝐼”⟩⟩) = (((𝑊 prefix 𝐸) ++ ⟨“𝐼”⟩) ++ (𝑊 substr ⟨𝐸, (♯‘𝑊)⟩)))
11	1, 10	eqtrid 2812	. . . 4 ⊢ (𝜑 → 𝑈 = (((𝑊 prefix 𝐸) ++ ⟨“𝐼”⟩) ++ (𝑊 substr ⟨𝐸, (♯‘𝑊)⟩)))
12	11	fveq1d 6873	. . 3 ⊢ (𝜑 → (𝑈‘𝐸) = ((((𝑊 prefix 𝐸) ++ ⟨“𝐼”⟩) ++ (𝑊 substr ⟨𝐸, (♯‘𝑊)⟩))‘𝐸))
13		ssrab2 4036	. . . . . . 7 ⊢ {𝑤 ∈ Word 𝐷 ∣ 𝑤:dom 𝑤–1-1→𝐷} ⊆ Word 𝐷
14		cycpmco2.d	. . . . . . . . . 10 ⊢ (𝜑 → 𝐷 ∈ 𝑉)
15		cycpmco2.c	. . . . . . . . . . 11 ⊢ 𝑀 = (toCyc‘𝐷)
16		cycpmco2.s	. . . . . . . . . . 11 ⊢ 𝑆 = (SymGrp‘𝐷)
17		eqid 2765	. . . . . . . . . . 11 ⊢ (Base‘𝑆) = (Base‘𝑆)
18	15, 16, 17	tocycf 33350	. . . . . . . . . 10 ⊢ (𝐷 ∈ 𝑉 → 𝑀:{𝑤 ∈ Word 𝐷 ∣ 𝑤:dom 𝑤–1-1→𝐷}⟶(Base‘𝑆))
19	14, 18	syl 18	. . . . . . . . 9 ⊢ (𝜑 → 𝑀:{𝑤 ∈ Word 𝐷 ∣ 𝑤:dom 𝑤–1-1→𝐷}⟶(Base‘𝑆))
20	19	fdmd 6706	. . . . . . . 8 ⊢ (𝜑 → dom 𝑀 = {𝑤 ∈ Word 𝐷 ∣ 𝑤:dom 𝑤–1-1→𝐷})
21	2, 20	eleqtrd 2867	. . . . . . 7 ⊢ (𝜑 → 𝑊 ∈ {𝑤 ∈ Word 𝐷 ∣ 𝑤:dom 𝑤–1-1→𝐷})
22	13, 21	sselid 3937	. . . . . 6 ⊢ (𝜑 → 𝑊 ∈ Word 𝐷)
23		pfxcl 14705	. . . . . 6 ⊢ (𝑊 ∈ Word 𝐷 → (𝑊 prefix 𝐸) ∈ Word 𝐷)
24	22, 23	syl 18	. . . . 5 ⊢ (𝜑 → (𝑊 prefix 𝐸) ∈ Word 𝐷)
25		ccatcl 14601	. . . . 5 ⊢ (((𝑊 prefix 𝐸) ∈ Word 𝐷 ∧ ⟨“𝐼”⟩ ∈ Word 𝐷) → ((𝑊 prefix 𝐸) ++ ⟨“𝐼”⟩) ∈ Word 𝐷)
26	24, 8, 25	syl2anc 595	. . . 4 ⊢ (𝜑 → ((𝑊 prefix 𝐸) ++ ⟨“𝐼”⟩) ∈ Word 𝐷)
27		swrdcl 14673	. . . . 5 ⊢ (𝑊 ∈ Word 𝐷 → (𝑊 substr ⟨𝐸, (♯‘𝑊)⟩) ∈ Word 𝐷)
28	22, 27	syl 18	. . . 4 ⊢ (𝜑 → (𝑊 substr ⟨𝐸, (♯‘𝑊)⟩) ∈ Word 𝐷)
29		fz0ssnn0 13641	. . . . . . 7 ⊢ (0...(♯‘𝑊)) ⊆ ℕ₀
30		id 23	. . . . . . . . . . . . . . . 16 ⊢ (𝑤 = 𝑊 → 𝑤 = 𝑊)
31		dmeq 5884	. . . . . . . . . . . . . . . 16 ⊢ (𝑤 = 𝑊 → dom 𝑤 = dom 𝑊)
32		eqidd 2766	. . . . . . . . . . . . . . . 16 ⊢ (𝑤 = 𝑊 → 𝐷 = 𝐷)
33	30, 31, 32	f1eq123d 6802	. . . . . . . . . . . . . . 15 ⊢ (𝑤 = 𝑊 → (𝑤:dom 𝑤–1-1→𝐷 ↔ 𝑊:dom 𝑊–1-1→𝐷))
34	33	elrab 3653	. . . . . . . . . . . . . 14 ⊢ (𝑊 ∈ {𝑤 ∈ Word 𝐷 ∣ 𝑤:dom 𝑤–1-1→𝐷} ↔ (𝑊 ∈ Word 𝐷 ∧ 𝑊:dom 𝑊–1-1→𝐷))
35	21, 34	sylib 221	. . . . . . . . . . . . 13 ⊢ (𝜑 → (𝑊 ∈ Word 𝐷 ∧ 𝑊:dom 𝑊–1-1→𝐷))
36	35	simprd 500	. . . . . . . . . . . 12 ⊢ (𝜑 → 𝑊:dom 𝑊–1-1→𝐷)
37		f1cnv 6835	. . . . . . . . . . . 12 ⊢ (𝑊:dom 𝑊–1-1→𝐷 → ^◡𝑊:ran 𝑊–1-1-onto→dom 𝑊)
38		f1of 6810	. . . . . . . . . . . 12 ⊢ (^◡𝑊:ran 𝑊–1-1-onto→dom 𝑊 → ^◡𝑊:ran 𝑊⟶dom 𝑊)
39	36, 37, 38	3syl 19	. . . . . . . . . . 11 ⊢ (𝜑 → ^◡𝑊:ran 𝑊⟶dom 𝑊)
40		cycpmco2.j	. . . . . . . . . . 11 ⊢ (𝜑 → 𝐽 ∈ ran 𝑊)
41	39, 40	ffvelcdmd 7070	. . . . . . . . . 10 ⊢ (𝜑 → (^◡𝑊‘𝐽) ∈ dom 𝑊)
42		wrddm 14548	. . . . . . . . . . 11 ⊢ (𝑊 ∈ Word 𝐷 → dom 𝑊 = (0..^(♯‘𝑊)))
43	22, 42	syl 18	. . . . . . . . . 10 ⊢ (𝜑 → dom 𝑊 = (0..^(♯‘𝑊)))
44	41, 43	eleqtrd 2867	. . . . . . . . 9 ⊢ (𝜑 → (^◡𝑊‘𝐽) ∈ (0..^(♯‘𝑊)))
45		fzofzp1 13784	. . . . . . . . 9 ⊢ ((^◡𝑊‘𝐽) ∈ (0..^(♯‘𝑊)) → ((^◡𝑊‘𝐽) + 1) ∈ (0...(♯‘𝑊)))
46	44, 45	syl 18	. . . . . . . 8 ⊢ (𝜑 → ((^◡𝑊‘𝐽) + 1) ∈ (0...(♯‘𝑊)))
47	3, 46	eqeltrid 2869	. . . . . . 7 ⊢ (𝜑 → 𝐸 ∈ (0...(♯‘𝑊)))
48	29, 47	sselid 3937	. . . . . 6 ⊢ (𝜑 → 𝐸 ∈ ℕ₀)
49		fzonn0p1 13762	. . . . . 6 ⊢ (𝐸 ∈ ℕ₀ → 𝐸 ∈ (0..^(𝐸 + 1)))
50	48, 49	syl 18	. . . . 5 ⊢ (𝜑 → 𝐸 ∈ (0..^(𝐸 + 1)))
51		ccatws1len 14648	. . . . . . . 8 ⊢ ((𝑊 prefix 𝐸) ∈ Word 𝐷 → (♯‘((𝑊 prefix 𝐸) ++ ⟨“𝐼”⟩)) = ((♯‘(𝑊 prefix 𝐸)) + 1))
52	22, 23, 51	3syl 19	. . . . . . 7 ⊢ (𝜑 → (♯‘((𝑊 prefix 𝐸) ++ ⟨“𝐼”⟩)) = ((♯‘(𝑊 prefix 𝐸)) + 1))
53		pfxlen 14711	. . . . . . . . 9 ⊢ ((𝑊 ∈ Word 𝐷 ∧ 𝐸 ∈ (0...(♯‘𝑊))) → (♯‘(𝑊 prefix 𝐸)) = 𝐸)
54	22, 47, 53	syl2anc 595	. . . . . . . 8 ⊢ (𝜑 → (♯‘(𝑊 prefix 𝐸)) = 𝐸)
55	54	oveq1d 7415	. . . . . . 7 ⊢ (𝜑 → ((♯‘(𝑊 prefix 𝐸)) + 1) = (𝐸 + 1))
56	52, 55	eqtrd 2800	. . . . . 6 ⊢ (𝜑 → (♯‘((𝑊 prefix 𝐸) ++ ⟨“𝐼”⟩)) = (𝐸 + 1))
57	56	oveq2d 7416	. . . . 5 ⊢ (𝜑 → (0..^(♯‘((𝑊 prefix 𝐸) ++ ⟨“𝐼”⟩))) = (0..^(𝐸 + 1)))
58	50, 57	eleqtrrd 2868	. . . 4 ⊢ (𝜑 → 𝐸 ∈ (0..^(♯‘((𝑊 prefix 𝐸) ++ ⟨“𝐼”⟩))))
59		ccatval1 14604	. . . 4 ⊢ ((((𝑊 prefix 𝐸) ++ ⟨“𝐼”⟩) ∈ Word 𝐷 ∧ (𝑊 substr ⟨𝐸, (♯‘𝑊)⟩) ∈ Word 𝐷 ∧ 𝐸 ∈ (0..^(♯‘((𝑊 prefix 𝐸) ++ ⟨“𝐼”⟩)))) → ((((𝑊 prefix 𝐸) ++ ⟨“𝐼”⟩) ++ (𝑊 substr ⟨𝐸, (♯‘𝑊)⟩))‘𝐸) = (((𝑊 prefix 𝐸) ++ ⟨“𝐼”⟩)‘𝐸))
60	26, 28, 58, 59	syl3anc 1394	. . 3 ⊢ (𝜑 → ((((𝑊 prefix 𝐸) ++ ⟨“𝐼”⟩) ++ (𝑊 substr ⟨𝐸, (♯‘𝑊)⟩))‘𝐸) = (((𝑊 prefix 𝐸) ++ ⟨“𝐼”⟩)‘𝐸))
61	48	nn0zd 12607	. . . . . 6 ⊢ (𝜑 → 𝐸 ∈ ℤ)
62		elfzomin 13757	. . . . . 6 ⊢ (𝐸 ∈ ℤ → 𝐸 ∈ (𝐸..^(𝐸 + 1)))
63	61, 62	syl 18	. . . . 5 ⊢ (𝜑 → 𝐸 ∈ (𝐸..^(𝐸 + 1)))
64		s1len 14634	. . . . . . . 8 ⊢ (♯‘⟨“𝐼”⟩) = 1
65	64	a1i 11	. . . . . . 7 ⊢ (𝜑 → (♯‘⟨“𝐼”⟩) = 1)
66	54, 65	oveq12d 7418	. . . . . 6 ⊢ (𝜑 → ((♯‘(𝑊 prefix 𝐸)) + (♯‘⟨“𝐼”⟩)) = (𝐸 + 1))
67	54, 66	oveq12d 7418	. . . . 5 ⊢ (𝜑 → ((♯‘(𝑊 prefix 𝐸))..^((♯‘(𝑊 prefix 𝐸)) + (♯‘⟨“𝐼”⟩))) = (𝐸..^(𝐸 + 1)))
68	63, 67	eleqtrrd 2868	. . . 4 ⊢ (𝜑 → 𝐸 ∈ ((♯‘(𝑊 prefix 𝐸))..^((♯‘(𝑊 prefix 𝐸)) + (♯‘⟨“𝐼”⟩))))
69		ccatval2 14605	. . . 4 ⊢ (((𝑊 prefix 𝐸) ∈ Word 𝐷 ∧ ⟨“𝐼”⟩ ∈ Word 𝐷 ∧ 𝐸 ∈ ((♯‘(𝑊 prefix 𝐸))..^((♯‘(𝑊 prefix 𝐸)) + (♯‘⟨“𝐼”⟩)))) → (((𝑊 prefix 𝐸) ++ ⟨“𝐼”⟩)‘𝐸) = (⟨“𝐼”⟩‘(𝐸 − (♯‘(𝑊 prefix 𝐸)))))
70	24, 8, 68, 69	syl3anc 1394	. . 3 ⊢ (𝜑 → (((𝑊 prefix 𝐸) ++ ⟨“𝐼”⟩)‘𝐸) = (⟨“𝐼”⟩‘(𝐸 − (♯‘(𝑊 prefix 𝐸)))))
71	12, 60, 70	3eqtrd 2804	. 2 ⊢ (𝜑 → (𝑈‘𝐸) = (⟨“𝐼”⟩‘(𝐸 − (♯‘(𝑊 prefix 𝐸)))))
72	54	oveq2d 7416	. . . 4 ⊢ (𝜑 → (𝐸 − (♯‘(𝑊 prefix 𝐸))) = (𝐸 − 𝐸))
73	48	nn0cnd 12558	. . . . 5 ⊢ (𝜑 → 𝐸 ∈ ℂ)
74	73	subidd 11545	. . . 4 ⊢ (𝜑 → (𝐸 − 𝐸) = 0)
75	72, 74	eqtrd 2800	. . 3 ⊢ (𝜑 → (𝐸 − (♯‘(𝑊 prefix 𝐸))) = 0)
76	75	fveq2d 6875	. 2 ⊢ (𝜑 → (⟨“𝐼”⟩‘(𝐸 − (♯‘(𝑊 prefix 𝐸)))) = (⟨“𝐼”⟩‘0))
77		s1fv 14638	. . 3 ⊢ (𝐼 ∈ (𝐷 ∖ ran 𝑊) → (⟨“𝐼”⟩‘0) = 𝐼)
78	6, 77	syl 18	. 2 ⊢ (𝜑 → (⟨“𝐼”⟩‘0) = 𝐼)
79	71, 76, 78	3eqtrd 2804	1 ⊢ (𝜑 → (𝑈‘𝐸) = 𝐼)

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 400 = wceq 1563 ∈ wcel 2145 {crab 3417 Vcvv 3457 ∖ cdif 3904 ⟨cop 4591 ⟨cotp 4593 ^◡ccnv 5651 dom cdm 5652 ran crn 5653 ⟶wf 6521 –1-1→wf1 6522 –1-1-onto→wf1o 6524 ‘cfv 6525 (class class class)co 7400 0cc0 11088 1c1 11089 + caddc 11091 − cmin 11429 ℕ₀cn0 12495 ℤcz 12582 ...cfz 13526 ..^cfzo 13673 ♯chash 14357 Word cword 14540 ++ cconcat 14597 ⟨“cs1 14623 substr csubstr 14668 prefix cpfx 14698 splice csplice 14776 Basecbs 17259 SymGrpcsymg 19430 toCycctocyc 33339

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1818 ax-4 1832 ax-5 1933 ax-6 1990 ax-7 2031 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2215 ax-ext 2737 ax-rep 5232 ax-sep 5251 ax-nul 5261 ax-pow 5327 ax-pr 5395 ax-un 7722 ax-cnex 11144 ax-resscn 11145 ax-1cn 11146 ax-icn 11147 ax-addcl 11148 ax-addrcl 11149 ax-mulcl 11150 ax-mulrcl 11151 ax-mulcom 11152 ax-addass 11153 ax-mulass 11154 ax-distr 11155 ax-i2m1 11156 ax-1ne0 11157 ax-1rid 11158 ax-rnegex 11159 ax-rrecex 11160 ax-cnre 11161 ax-pre-lttri 11162 ax-pre-lttrn 11163 ax-pre-ltadd 11164 ax-pre-mulgt0 11165 ax-pre-sup 11166

This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1566 df-fal 1576 df-ex 1803 df-nf 1807 df-sb 2094 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-nel 3065 df-ral 3080 df-rex 3090 df-rmo 3370 df-reu 3371 df-rab 3418 df-v 3459 df-sbc 3748 df-csb 3856 df-dif 3910 df-un 3912 df-in 3914 df-ss 3924 df-pss 3927 df-nul 4289 df-if 4484 df-pw 4560 df-sn 4586 df-pr 4588 df-tp 4590 df-op 4592 df-ot 4594 df-uni 4869 df-int 4909 df-iun 4954 df-br 5106 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5547 df-eprel 5552 df-po 5560 df-so 5561 df-fr 5605 df-we 5607 df-xp 5658 df-rel 5659 df-cnv 5660 df-co 5661 df-dm 5662 df-rn 5663 df-res 5664 df-ima 5665 df-pred 6292 df-ord 6353 df-on 6354 df-lim 6355 df-suc 6356 df-iota 6481 df-fun 6527 df-fn 6528 df-f 6529 df-f1 6530 df-fo 6531 df-f1o 6532 df-fv 6533 df-riota 7357 df-ov 7403 df-oprab 7404 df-mpo 7405 df-om 7851 df-1st 7974 df-2nd 7975 df-frecs 8266 df-wrecs 8297 df-recs 8346 df-rdg 8385 df-1o 8441 df-er 8682 df-map 8814 df-en 8932 df-dom 8933 df-sdom 8934 df-fin 8935 df-sup 9390 df-inf 9391 df-card 9913 df-pnf 11233 df-mnf 11234 df-xr 11235 df-ltxr 11236 df-le 11237 df-sub 11431 df-neg 11432 df-div 11860 df-nn 12225 df-2 12294 df-3 12295 df-4 12296 df-5 12297 df-6 12298 df-7 12299 df-8 12300 df-9 12301 df-n0 12496 df-z 12583 df-uz 12854 df-rp 13008 df-fz 13527 df-fzo 13674 df-fl 13816 df-mod 13894 df-hash 14358 df-word 14541 df-concat 14598 df-s1 14624 df-substr 14669 df-pfx 14699 df-splice 14777 df-csh 14816 df-struct 17197 df-sets 17214 df-slot 17232 df-ndx 17244 df-base 17260 df-ress 17281 df-plusg 17313 df-tset 17319 df-efmnd 18918 df-symg 19431 df-tocyc 33340

This theorem is referenced by: cycpmco2lem4 33362 cycpmco2lem5 33363 cycpmco2lem6 33364 cycpmco2 33366

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