signstfvc - Mathbox for Thierry Arnoux

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Theorem signstfvc 29977

Description: Zero-skipping sign in a word compared to a shorter word. (Contributed by Thierry Arnoux, 11-Oct-2018.)

**Hypotheses**
Ref	Expression
signsv.p	⊢ ⨣ = (𝑎 ∈ {-1, 0, 1}, 𝑏 ∈ {-1, 0, 1} ↦ if(𝑏 = 0, 𝑎, 𝑏))
signsv.w	⊢ 𝑊 = {⟨(Base‘ndx), {-1, 0, 1}⟩, ⟨(+_g‘ndx), ⨣ ⟩}
signsv.t	⊢ 𝑇 = (𝑓 ∈ Word ℝ ↦ (𝑛 ∈ (0..^(#‘𝑓)) ↦ (𝑊 Σ_g (𝑖 ∈ (0...𝑛) ↦ (sgn‘(𝑓‘𝑖))))))
signsv.v	⊢ 𝑉 = (𝑓 ∈ Word ℝ ↦ Σ𝑗 ∈ (1..^(#‘𝑓))if(((𝑇‘𝑓)‘𝑗) ≠ ((𝑇‘𝑓)‘(𝑗 − 1)), 1, 0))

**Assertion**
Ref	Expression
signstfvc	⊢ ((𝐹 ∈ Word ℝ ∧ 𝐺 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹))) → ((𝑇‘(𝐹 ++ 𝐺))‘𝑁) = ((𝑇‘𝐹)‘𝑁))

Distinct variable groups: 𝑎,𝑏, ⨣ 𝑓,𝑖,𝑛,𝐹 𝑓,𝑊,𝑖,𝑛 𝑖,𝑁,𝑛 Allowed substitution hints: ⨣ (𝑓,𝑖,𝑗,𝑛) 𝑇(𝑓,𝑖,𝑗,𝑛,𝑎,𝑏) 𝐹(𝑗,𝑎,𝑏) 𝐺(𝑓,𝑖,𝑗,𝑛,𝑎,𝑏) 𝑁(𝑓,𝑗,𝑎,𝑏) 𝑉(𝑓,𝑖,𝑗,𝑛,𝑎,𝑏) 𝑊(𝑗,𝑎,𝑏)

Proof of Theorem signstfvc Dummy variables 𝑒 𝑔 𝑘 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		oveq2 6557	. . . . . . . 8 ⊢ (𝑔 = ∅ → (𝐹 ++ 𝑔) = (𝐹 ++ ∅))
2	1	fveq2d 6107	. . . . . . 7 ⊢ (𝑔 = ∅ → (𝑇‘(𝐹 ++ 𝑔)) = (𝑇‘(𝐹 ++ ∅)))
3	2	fveq1d 6105	. . . . . 6 ⊢ (𝑔 = ∅ → ((𝑇‘(𝐹 ++ 𝑔))‘𝑁) = ((𝑇‘(𝐹 ++ ∅))‘𝑁))
4	3	eqeq1d 2612	. . . . 5 ⊢ (𝑔 = ∅ → (((𝑇‘(𝐹 ++ 𝑔))‘𝑁) = ((𝑇‘𝐹)‘𝑁) ↔ ((𝑇‘(𝐹 ++ ∅))‘𝑁) = ((𝑇‘𝐹)‘𝑁)))
5	4	imbi2d 329	. . . 4 ⊢ (𝑔 = ∅ → (((𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹))) → ((𝑇‘(𝐹 ++ 𝑔))‘𝑁) = ((𝑇‘𝐹)‘𝑁)) ↔ ((𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹))) → ((𝑇‘(𝐹 ++ ∅))‘𝑁) = ((𝑇‘𝐹)‘𝑁))))
6		oveq2 6557	. . . . . . . 8 ⊢ (𝑔 = 𝑒 → (𝐹 ++ 𝑔) = (𝐹 ++ 𝑒))
7	6	fveq2d 6107	. . . . . . 7 ⊢ (𝑔 = 𝑒 → (𝑇‘(𝐹 ++ 𝑔)) = (𝑇‘(𝐹 ++ 𝑒)))
8	7	fveq1d 6105	. . . . . 6 ⊢ (𝑔 = 𝑒 → ((𝑇‘(𝐹 ++ 𝑔))‘𝑁) = ((𝑇‘(𝐹 ++ 𝑒))‘𝑁))
9	8	eqeq1d 2612	. . . . 5 ⊢ (𝑔 = 𝑒 → (((𝑇‘(𝐹 ++ 𝑔))‘𝑁) = ((𝑇‘𝐹)‘𝑁) ↔ ((𝑇‘(𝐹 ++ 𝑒))‘𝑁) = ((𝑇‘𝐹)‘𝑁)))
10	9	imbi2d 329	. . . 4 ⊢ (𝑔 = 𝑒 → (((𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹))) → ((𝑇‘(𝐹 ++ 𝑔))‘𝑁) = ((𝑇‘𝐹)‘𝑁)) ↔ ((𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹))) → ((𝑇‘(𝐹 ++ 𝑒))‘𝑁) = ((𝑇‘𝐹)‘𝑁))))
11		oveq2 6557	. . . . . . . 8 ⊢ (𝑔 = (𝑒 ++ ⟨“𝑘”⟩) → (𝐹 ++ 𝑔) = (𝐹 ++ (𝑒 ++ ⟨“𝑘”⟩)))
12	11	fveq2d 6107	. . . . . . 7 ⊢ (𝑔 = (𝑒 ++ ⟨“𝑘”⟩) → (𝑇‘(𝐹 ++ 𝑔)) = (𝑇‘(𝐹 ++ (𝑒 ++ ⟨“𝑘”⟩))))
13	12	fveq1d 6105	. . . . . 6 ⊢ (𝑔 = (𝑒 ++ ⟨“𝑘”⟩) → ((𝑇‘(𝐹 ++ 𝑔))‘𝑁) = ((𝑇‘(𝐹 ++ (𝑒 ++ ⟨“𝑘”⟩)))‘𝑁))
14	13	eqeq1d 2612	. . . . 5 ⊢ (𝑔 = (𝑒 ++ ⟨“𝑘”⟩) → (((𝑇‘(𝐹 ++ 𝑔))‘𝑁) = ((𝑇‘𝐹)‘𝑁) ↔ ((𝑇‘(𝐹 ++ (𝑒 ++ ⟨“𝑘”⟩)))‘𝑁) = ((𝑇‘𝐹)‘𝑁)))
15	14	imbi2d 329	. . . 4 ⊢ (𝑔 = (𝑒 ++ ⟨“𝑘”⟩) → (((𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹))) → ((𝑇‘(𝐹 ++ 𝑔))‘𝑁) = ((𝑇‘𝐹)‘𝑁)) ↔ ((𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹))) → ((𝑇‘(𝐹 ++ (𝑒 ++ ⟨“𝑘”⟩)))‘𝑁) = ((𝑇‘𝐹)‘𝑁))))
16		oveq2 6557	. . . . . . . 8 ⊢ (𝑔 = 𝐺 → (𝐹 ++ 𝑔) = (𝐹 ++ 𝐺))
17	16	fveq2d 6107	. . . . . . 7 ⊢ (𝑔 = 𝐺 → (𝑇‘(𝐹 ++ 𝑔)) = (𝑇‘(𝐹 ++ 𝐺)))
18	17	fveq1d 6105	. . . . . 6 ⊢ (𝑔 = 𝐺 → ((𝑇‘(𝐹 ++ 𝑔))‘𝑁) = ((𝑇‘(𝐹 ++ 𝐺))‘𝑁))
19	18	eqeq1d 2612	. . . . 5 ⊢ (𝑔 = 𝐺 → (((𝑇‘(𝐹 ++ 𝑔))‘𝑁) = ((𝑇‘𝐹)‘𝑁) ↔ ((𝑇‘(𝐹 ++ 𝐺))‘𝑁) = ((𝑇‘𝐹)‘𝑁)))
20	19	imbi2d 329	. . . 4 ⊢ (𝑔 = 𝐺 → (((𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹))) → ((𝑇‘(𝐹 ++ 𝑔))‘𝑁) = ((𝑇‘𝐹)‘𝑁)) ↔ ((𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹))) → ((𝑇‘(𝐹 ++ 𝐺))‘𝑁) = ((𝑇‘𝐹)‘𝑁))))
21		ccatrid 13223	. . . . . . 7 ⊢ (𝐹 ∈ Word ℝ → (𝐹 ++ ∅) = 𝐹)
22	21	fveq2d 6107	. . . . . 6 ⊢ (𝐹 ∈ Word ℝ → (𝑇‘(𝐹 ++ ∅)) = (𝑇‘𝐹))
23	22	fveq1d 6105	. . . . 5 ⊢ (𝐹 ∈ Word ℝ → ((𝑇‘(𝐹 ++ ∅))‘𝑁) = ((𝑇‘𝐹)‘𝑁))
24	23	adantr 480	. . . 4 ⊢ ((𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹))) → ((𝑇‘(𝐹 ++ ∅))‘𝑁) = ((𝑇‘𝐹)‘𝑁))
25		simprl 790	. . . . . . . . . . . 12 ⊢ (((𝑒 ∈ Word ℝ ∧ 𝑘 ∈ ℝ) ∧ (𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹)))) → 𝐹 ∈ Word ℝ)
26		simpll 786	. . . . . . . . . . . 12 ⊢ (((𝑒 ∈ Word ℝ ∧ 𝑘 ∈ ℝ) ∧ (𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹)))) → 𝑒 ∈ Word ℝ)
27		simplr 788	. . . . . . . . . . . . 13 ⊢ (((𝑒 ∈ Word ℝ ∧ 𝑘 ∈ ℝ) ∧ (𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹)))) → 𝑘 ∈ ℝ)
28	27	s1cld 13236	. . . . . . . . . . . 12 ⊢ (((𝑒 ∈ Word ℝ ∧ 𝑘 ∈ ℝ) ∧ (𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹)))) → ⟨“𝑘”⟩ ∈ Word ℝ)
29		ccatass 13224	. . . . . . . . . . . 12 ⊢ ((𝐹 ∈ Word ℝ ∧ 𝑒 ∈ Word ℝ ∧ ⟨“𝑘”⟩ ∈ Word ℝ) → ((𝐹 ++ 𝑒) ++ ⟨“𝑘”⟩) = (𝐹 ++ (𝑒 ++ ⟨“𝑘”⟩)))
30	25, 26, 28, 29	syl3anc 1318	. . . . . . . . . . 11 ⊢ (((𝑒 ∈ Word ℝ ∧ 𝑘 ∈ ℝ) ∧ (𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹)))) → ((𝐹 ++ 𝑒) ++ ⟨“𝑘”⟩) = (𝐹 ++ (𝑒 ++ ⟨“𝑘”⟩)))
31	30	fveq2d 6107	. . . . . . . . . 10 ⊢ (((𝑒 ∈ Word ℝ ∧ 𝑘 ∈ ℝ) ∧ (𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹)))) → (𝑇‘((𝐹 ++ 𝑒) ++ ⟨“𝑘”⟩)) = (𝑇‘(𝐹 ++ (𝑒 ++ ⟨“𝑘”⟩))))
32	31	fveq1d 6105	. . . . . . . . 9 ⊢ (((𝑒 ∈ Word ℝ ∧ 𝑘 ∈ ℝ) ∧ (𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹)))) → ((𝑇‘((𝐹 ++ 𝑒) ++ ⟨“𝑘”⟩))‘𝑁) = ((𝑇‘(𝐹 ++ (𝑒 ++ ⟨“𝑘”⟩)))‘𝑁))
33		ccatcl 13212	. . . . . . . . . . 11 ⊢ ((𝐹 ∈ Word ℝ ∧ 𝑒 ∈ Word ℝ) → (𝐹 ++ 𝑒) ∈ Word ℝ)
34	25, 26, 33	syl2anc 691	. . . . . . . . . 10 ⊢ (((𝑒 ∈ Word ℝ ∧ 𝑘 ∈ ℝ) ∧ (𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹)))) → (𝐹 ++ 𝑒) ∈ Word ℝ)
35		lencl 13179	. . . . . . . . . . . . . . 15 ⊢ (𝐹 ∈ Word ℝ → (#‘𝐹) ∈ ℕ₀)
36	25, 35	syl 17	. . . . . . . . . . . . . 14 ⊢ (((𝑒 ∈ Word ℝ ∧ 𝑘 ∈ ℝ) ∧ (𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹)))) → (#‘𝐹) ∈ ℕ₀)
37	36	nn0zd 11356	. . . . . . . . . . . . 13 ⊢ (((𝑒 ∈ Word ℝ ∧ 𝑘 ∈ ℝ) ∧ (𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹)))) → (#‘𝐹) ∈ ℤ)
38		lencl 13179	. . . . . . . . . . . . . . 15 ⊢ ((𝐹 ++ 𝑒) ∈ Word ℝ → (#‘(𝐹 ++ 𝑒)) ∈ ℕ₀)
39	34, 38	syl 17	. . . . . . . . . . . . . 14 ⊢ (((𝑒 ∈ Word ℝ ∧ 𝑘 ∈ ℝ) ∧ (𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹)))) → (#‘(𝐹 ++ 𝑒)) ∈ ℕ₀)
40	39	nn0zd 11356	. . . . . . . . . . . . 13 ⊢ (((𝑒 ∈ Word ℝ ∧ 𝑘 ∈ ℝ) ∧ (𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹)))) → (#‘(𝐹 ++ 𝑒)) ∈ ℤ)
41	36	nn0red 11229	. . . . . . . . . . . . . . 15 ⊢ (((𝑒 ∈ Word ℝ ∧ 𝑘 ∈ ℝ) ∧ (𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹)))) → (#‘𝐹) ∈ ℝ)
42		lencl 13179	. . . . . . . . . . . . . . . 16 ⊢ (𝑒 ∈ Word ℝ → (#‘𝑒) ∈ ℕ₀)
43	26, 42	syl 17	. . . . . . . . . . . . . . 15 ⊢ (((𝑒 ∈ Word ℝ ∧ 𝑘 ∈ ℝ) ∧ (𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹)))) → (#‘𝑒) ∈ ℕ₀)
44		nn0addge1 11216	. . . . . . . . . . . . . . 15 ⊢ (((#‘𝐹) ∈ ℝ ∧ (#‘𝑒) ∈ ℕ₀) → (#‘𝐹) ≤ ((#‘𝐹) + (#‘𝑒)))
45	41, 43, 44	syl2anc 691	. . . . . . . . . . . . . 14 ⊢ (((𝑒 ∈ Word ℝ ∧ 𝑘 ∈ ℝ) ∧ (𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹)))) → (#‘𝐹) ≤ ((#‘𝐹) + (#‘𝑒)))
46		ccatlen 13213	. . . . . . . . . . . . . . 15 ⊢ ((𝐹 ∈ Word ℝ ∧ 𝑒 ∈ Word ℝ) → (#‘(𝐹 ++ 𝑒)) = ((#‘𝐹) + (#‘𝑒)))
47	25, 26, 46	syl2anc 691	. . . . . . . . . . . . . 14 ⊢ (((𝑒 ∈ Word ℝ ∧ 𝑘 ∈ ℝ) ∧ (𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹)))) → (#‘(𝐹 ++ 𝑒)) = ((#‘𝐹) + (#‘𝑒)))
48	45, 47	breqtrrd 4611	. . . . . . . . . . . . 13 ⊢ (((𝑒 ∈ Word ℝ ∧ 𝑘 ∈ ℝ) ∧ (𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹)))) → (#‘𝐹) ≤ (#‘(𝐹 ++ 𝑒)))
49		eluz2 11569	. . . . . . . . . . . . 13 ⊢ ((#‘(𝐹 ++ 𝑒)) ∈ (ℤ_≥‘(#‘𝐹)) ↔ ((#‘𝐹) ∈ ℤ ∧ (#‘(𝐹 ++ 𝑒)) ∈ ℤ ∧ (#‘𝐹) ≤ (#‘(𝐹 ++ 𝑒))))
50	37, 40, 48, 49	syl3anbrc 1239	. . . . . . . . . . . 12 ⊢ (((𝑒 ∈ Word ℝ ∧ 𝑘 ∈ ℝ) ∧ (𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹)))) → (#‘(𝐹 ++ 𝑒)) ∈ (ℤ_≥‘(#‘𝐹)))
51		fzoss2 12365	. . . . . . . . . . . 12 ⊢ ((#‘(𝐹 ++ 𝑒)) ∈ (ℤ_≥‘(#‘𝐹)) → (0..^(#‘𝐹)) ⊆ (0..^(#‘(𝐹 ++ 𝑒))))
52	50, 51	syl 17	. . . . . . . . . . 11 ⊢ (((𝑒 ∈ Word ℝ ∧ 𝑘 ∈ ℝ) ∧ (𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹)))) → (0..^(#‘𝐹)) ⊆ (0..^(#‘(𝐹 ++ 𝑒))))
53		simprr 792	. . . . . . . . . . 11 ⊢ (((𝑒 ∈ Word ℝ ∧ 𝑘 ∈ ℝ) ∧ (𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹)))) → 𝑁 ∈ (0..^(#‘𝐹)))
54	52, 53	sseldd 3569	. . . . . . . . . 10 ⊢ (((𝑒 ∈ Word ℝ ∧ 𝑘 ∈ ℝ) ∧ (𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹)))) → 𝑁 ∈ (0..^(#‘(𝐹 ++ 𝑒))))
55		signsv.p	. . . . . . . . . . 11 ⊢ ⨣ = (𝑎 ∈ {-1, 0, 1}, 𝑏 ∈ {-1, 0, 1} ↦ if(𝑏 = 0, 𝑎, 𝑏))
56		signsv.w	. . . . . . . . . . 11 ⊢ 𝑊 = {⟨(Base‘ndx), {-1, 0, 1}⟩, ⟨(+_g‘ndx), ⨣ ⟩}
57		signsv.t	. . . . . . . . . . 11 ⊢ 𝑇 = (𝑓 ∈ Word ℝ ↦ (𝑛 ∈ (0..^(#‘𝑓)) ↦ (𝑊 Σ_g (𝑖 ∈ (0...𝑛) ↦ (sgn‘(𝑓‘𝑖))))))
58		signsv.v	. . . . . . . . . . 11 ⊢ 𝑉 = (𝑓 ∈ Word ℝ ↦ Σ𝑗 ∈ (1..^(#‘𝑓))if(((𝑇‘𝑓)‘𝑗) ≠ ((𝑇‘𝑓)‘(𝑗 − 1)), 1, 0))
59	55, 56, 57, 58	signstfvp 29974	. . . . . . . . . 10 ⊢ (((𝐹 ++ 𝑒) ∈ Word ℝ ∧ 𝑘 ∈ ℝ ∧ 𝑁 ∈ (0..^(#‘(𝐹 ++ 𝑒)))) → ((𝑇‘((𝐹 ++ 𝑒) ++ ⟨“𝑘”⟩))‘𝑁) = ((𝑇‘(𝐹 ++ 𝑒))‘𝑁))
60	34, 27, 54, 59	syl3anc 1318	. . . . . . . . 9 ⊢ (((𝑒 ∈ Word ℝ ∧ 𝑘 ∈ ℝ) ∧ (𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹)))) → ((𝑇‘((𝐹 ++ 𝑒) ++ ⟨“𝑘”⟩))‘𝑁) = ((𝑇‘(𝐹 ++ 𝑒))‘𝑁))
61	32, 60	eqtr3d 2646	. . . . . . . 8 ⊢ (((𝑒 ∈ Word ℝ ∧ 𝑘 ∈ ℝ) ∧ (𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹)))) → ((𝑇‘(𝐹 ++ (𝑒 ++ ⟨“𝑘”⟩)))‘𝑁) = ((𝑇‘(𝐹 ++ 𝑒))‘𝑁))
62	61	adantr 480	. . . . . . 7 ⊢ ((((𝑒 ∈ Word ℝ ∧ 𝑘 ∈ ℝ) ∧ (𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹)))) ∧ ((𝑇‘(𝐹 ++ 𝑒))‘𝑁) = ((𝑇‘𝐹)‘𝑁)) → ((𝑇‘(𝐹 ++ (𝑒 ++ ⟨“𝑘”⟩)))‘𝑁) = ((𝑇‘(𝐹 ++ 𝑒))‘𝑁))
63		simpr 476	. . . . . . 7 ⊢ ((((𝑒 ∈ Word ℝ ∧ 𝑘 ∈ ℝ) ∧ (𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹)))) ∧ ((𝑇‘(𝐹 ++ 𝑒))‘𝑁) = ((𝑇‘𝐹)‘𝑁)) → ((𝑇‘(𝐹 ++ 𝑒))‘𝑁) = ((𝑇‘𝐹)‘𝑁))
64	62, 63	eqtrd 2644	. . . . . 6 ⊢ ((((𝑒 ∈ Word ℝ ∧ 𝑘 ∈ ℝ) ∧ (𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹)))) ∧ ((𝑇‘(𝐹 ++ 𝑒))‘𝑁) = ((𝑇‘𝐹)‘𝑁)) → ((𝑇‘(𝐹 ++ (𝑒 ++ ⟨“𝑘”⟩)))‘𝑁) = ((𝑇‘𝐹)‘𝑁))
65	64	exp31 628	. . . . 5 ⊢ ((𝑒 ∈ Word ℝ ∧ 𝑘 ∈ ℝ) → ((𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹))) → (((𝑇‘(𝐹 ++ 𝑒))‘𝑁) = ((𝑇‘𝐹)‘𝑁) → ((𝑇‘(𝐹 ++ (𝑒 ++ ⟨“𝑘”⟩)))‘𝑁) = ((𝑇‘𝐹)‘𝑁))))
66	65	a2d 29	. . . 4 ⊢ ((𝑒 ∈ Word ℝ ∧ 𝑘 ∈ ℝ) → (((𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹))) → ((𝑇‘(𝐹 ++ 𝑒))‘𝑁) = ((𝑇‘𝐹)‘𝑁)) → ((𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹))) → ((𝑇‘(𝐹 ++ (𝑒 ++ ⟨“𝑘”⟩)))‘𝑁) = ((𝑇‘𝐹)‘𝑁))))
67	5, 10, 15, 20, 24, 66	wrdind 13328	. . 3 ⊢ (𝐺 ∈ Word ℝ → ((𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹))) → ((𝑇‘(𝐹 ++ 𝐺))‘𝑁) = ((𝑇‘𝐹)‘𝑁)))
68	67	3impib 1254	. 2 ⊢ ((𝐺 ∈ Word ℝ ∧ 𝐹 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹))) → ((𝑇‘(𝐹 ++ 𝐺))‘𝑁) = ((𝑇‘𝐹)‘𝑁))
69	68	3com12 1261	1 ⊢ ((𝐹 ∈ Word ℝ ∧ 𝐺 ∈ Word ℝ ∧ 𝑁 ∈ (0..^(#‘𝐹))) → ((𝑇‘(𝐹 ++ 𝐺))‘𝑁) = ((𝑇‘𝐹)‘𝑁))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 383 ∧ w3a 1031 = wceq 1475 ∈ wcel 1977 ≠ wne 2780 ⊆ wss 3540 ∅c0 3874 ifcif 4036 {cpr 4127 {ctp 4129 ⟨cop 4131 class class class wbr 4583 ↦ cmpt 4643 ‘cfv 5804 (class class class)co 6549 ↦ cmpt2 6551 ℝcr 9814 0cc0 9815 1c1 9816 + caddc 9818 ≤ cle 9954 − cmin 10145 -cneg 10146 ℕ₀cn0 11169 ℤcz 11254 ℤ_≥cuz 11563 ...cfz 12197 ..^cfzo 12334 #chash 12979 Word cword 13146 ++ cconcat 13148 ⟨“cs1 13149 sgncsgn 13674 Σcsu 14264 ndxcnx 15692 Basecbs 15695 +_gcplusg 15768 Σ_g cgsu 15924

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-8 1979 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-rep 4699 ax-sep 4709 ax-nul 4717 ax-pow 4769 ax-pr 4833 ax-un 6847 ax-cnex 9871 ax-resscn 9872 ax-1cn 9873 ax-icn 9874 ax-addcl 9875 ax-addrcl 9876 ax-mulcl 9877 ax-mulrcl 9878 ax-mulcom 9879 ax-addass 9880 ax-mulass 9881 ax-distr 9882 ax-i2m1 9883 ax-1ne0 9884 ax-1rid 9885 ax-rnegex 9886 ax-rrecex 9887 ax-cnre 9888 ax-pre-lttri 9889 ax-pre-lttrn 9890 ax-pre-ltadd 9891 ax-pre-mulgt0 9892

This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3or 1032 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-eu 2462 df-mo 2463 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-nel 2783 df-ral 2901 df-rex 2902 df-reu 2903 df-rab 2905 df-v 3175 df-sbc 3403 df-csb 3500 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-pss 3556 df-nul 3875 df-if 4037 df-pw 4110 df-sn 4126 df-pr 4128 df-tp 4130 df-op 4132 df-uni 4373 df-int 4411 df-iun 4457 df-br 4584 df-opab 4644 df-mpt 4645 df-tr 4681 df-eprel 4949 df-id 4953 df-po 4959 df-so 4960 df-fr 4997 df-we 4999 df-xp 5044 df-rel 5045 df-cnv 5046 df-co 5047 df-dm 5048 df-rn 5049 df-res 5050 df-ima 5051 df-pred 5597 df-ord 5643 df-on 5644 df-lim 5645 df-suc 5646 df-iota 5768 df-fun 5806 df-fn 5807 df-f 5808 df-f1 5809 df-fo 5810 df-f1o 5811 df-fv 5812 df-riota 6511 df-ov 6552 df-oprab 6553 df-mpt2 6554 df-om 6958 df-1st 7059 df-2nd 7060 df-wrecs 7294 df-recs 7355 df-rdg 7393 df-1o 7447 df-oadd 7451 df-er 7629 df-en 7842 df-dom 7843 df-sdom 7844 df-fin 7845 df-card 8648 df-pnf 9955 df-mnf 9956 df-xr 9957 df-ltxr 9958 df-le 9959 df-sub 10147 df-neg 10148 df-nn 10898 df-n0 11170 df-xnn0 11241 df-z 11255 df-uz 11564 df-fz 12198 df-fzo 12335 df-hash 12980 df-word 13154 df-lsw 13155 df-concat 13156 df-s1 13157 df-substr 13158

This theorem is referenced by: signstres 29978

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