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Theorem swrdwrdsymbg 11117

Description: A subword is a word over the symbols it consists of. (Contributed by AV, 2-Dec-2022.)

**Assertion**
Ref	Expression
swrdwrdsymbg	⊢ ((𝑆 ∈ Word 𝐴 ∧ 𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆))) → (𝑆 substr ⟨𝑀, 𝑁⟩) ∈ Word (𝑆 “ (𝑀..^𝑁)))

Proof of Theorem swrdwrdsymbg Dummy variable 𝑥 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		swrdval2 11104	. . . 4 ⊢ ((𝑆 ∈ Word 𝐴 ∧ 𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆))) → (𝑆 substr ⟨𝑀, 𝑁⟩) = (𝑥 ∈ (0..^(𝑁 − 𝑀)) ↦ (𝑆‘(𝑥 + 𝑀))))
2	1	3expb 1207	. . 3 ⊢ ((𝑆 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆)))) → (𝑆 substr ⟨𝑀, 𝑁⟩) = (𝑥 ∈ (0..^(𝑁 − 𝑀)) ↦ (𝑆‘(𝑥 + 𝑀))))
3		wrdf 11000	. . . . . . . . . 10 ⊢ (𝑆 ∈ Word 𝐴 → 𝑆:(0..^(♯‘𝑆))⟶𝐴)
4	3	ffund 5429	. . . . . . . . 9 ⊢ (𝑆 ∈ Word 𝐴 → Fun 𝑆)
5	4	adantr 276	. . . . . . . 8 ⊢ ((𝑆 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆)))) → Fun 𝑆)
6	5	adantr 276	. . . . . . 7 ⊢ (((𝑆 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆)))) ∧ 𝑥 ∈ (0..^(𝑁 − 𝑀))) → Fun 𝑆)
7		wrddm 11002	. . . . . . . . 9 ⊢ (𝑆 ∈ Word 𝐴 → dom 𝑆 = (0..^(♯‘𝑆)))
8		elfzodifsumelfzo 10330	. . . . . . . . . . . . 13 ⊢ ((𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆))) → (𝑥 ∈ (0..^(𝑁 − 𝑀)) → (𝑥 + 𝑀) ∈ (0..^(♯‘𝑆))))
9	8	imp 124	. . . . . . . . . . . 12 ⊢ (((𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆))) ∧ 𝑥 ∈ (0..^(𝑁 − 𝑀))) → (𝑥 + 𝑀) ∈ (0..^(♯‘𝑆)))
10	9	adantl 277	. . . . . . . . . . 11 ⊢ ((dom 𝑆 = (0..^(♯‘𝑆)) ∧ ((𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆))) ∧ 𝑥 ∈ (0..^(𝑁 − 𝑀)))) → (𝑥 + 𝑀) ∈ (0..^(♯‘𝑆)))
11		eleq2 2269	. . . . . . . . . . . 12 ⊢ (dom 𝑆 = (0..^(♯‘𝑆)) → ((𝑥 + 𝑀) ∈ dom 𝑆 ↔ (𝑥 + 𝑀) ∈ (0..^(♯‘𝑆))))
12	11	adantr 276	. . . . . . . . . . 11 ⊢ ((dom 𝑆 = (0..^(♯‘𝑆)) ∧ ((𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆))) ∧ 𝑥 ∈ (0..^(𝑁 − 𝑀)))) → ((𝑥 + 𝑀) ∈ dom 𝑆 ↔ (𝑥 + 𝑀) ∈ (0..^(♯‘𝑆))))
13	10, 12	mpbird 167	. . . . . . . . . 10 ⊢ ((dom 𝑆 = (0..^(♯‘𝑆)) ∧ ((𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆))) ∧ 𝑥 ∈ (0..^(𝑁 − 𝑀)))) → (𝑥 + 𝑀) ∈ dom 𝑆)
14	13	exp32 365	. . . . . . . . 9 ⊢ (dom 𝑆 = (0..^(♯‘𝑆)) → ((𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆))) → (𝑥 ∈ (0..^(𝑁 − 𝑀)) → (𝑥 + 𝑀) ∈ dom 𝑆)))
15	7, 14	syl 14	. . . . . . . 8 ⊢ (𝑆 ∈ Word 𝐴 → ((𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆))) → (𝑥 ∈ (0..^(𝑁 − 𝑀)) → (𝑥 + 𝑀) ∈ dom 𝑆)))
16	15	imp31 256	. . . . . . 7 ⊢ (((𝑆 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆)))) ∧ 𝑥 ∈ (0..^(𝑁 − 𝑀))) → (𝑥 + 𝑀) ∈ dom 𝑆)
17		simpr 110	. . . . . . . 8 ⊢ (((𝑆 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆)))) ∧ 𝑥 ∈ (0..^(𝑁 − 𝑀))) → 𝑥 ∈ (0..^(𝑁 − 𝑀)))
18		elfzelz 10147	. . . . . . . . . . 11 ⊢ (𝑁 ∈ (0...(♯‘𝑆)) → 𝑁 ∈ ℤ)
19	18	adantl 277	. . . . . . . . . 10 ⊢ ((𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆))) → 𝑁 ∈ ℤ)
20	19	adantl 277	. . . . . . . . 9 ⊢ ((𝑆 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆)))) → 𝑁 ∈ ℤ)
21	20	adantr 276	. . . . . . . 8 ⊢ (((𝑆 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆)))) ∧ 𝑥 ∈ (0..^(𝑁 − 𝑀))) → 𝑁 ∈ ℤ)
22		elfzelz 10147	. . . . . . . . . 10 ⊢ (𝑀 ∈ (0...𝑁) → 𝑀 ∈ ℤ)
23	22	ad2antrl 490	. . . . . . . . 9 ⊢ ((𝑆 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆)))) → 𝑀 ∈ ℤ)
24	23	adantr 276	. . . . . . . 8 ⊢ (((𝑆 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆)))) ∧ 𝑥 ∈ (0..^(𝑁 − 𝑀))) → 𝑀 ∈ ℤ)
25		fzoaddel2 10319	. . . . . . . 8 ⊢ ((𝑥 ∈ (0..^(𝑁 − 𝑀)) ∧ 𝑁 ∈ ℤ ∧ 𝑀 ∈ ℤ) → (𝑥 + 𝑀) ∈ (𝑀..^𝑁))
26	17, 21, 24, 25	syl3anc 1250	. . . . . . 7 ⊢ (((𝑆 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆)))) ∧ 𝑥 ∈ (0..^(𝑁 − 𝑀))) → (𝑥 + 𝑀) ∈ (𝑀..^𝑁))
27		funfvima 5816	. . . . . . . 8 ⊢ ((Fun 𝑆 ∧ (𝑥 + 𝑀) ∈ dom 𝑆) → ((𝑥 + 𝑀) ∈ (𝑀..^𝑁) → (𝑆‘(𝑥 + 𝑀)) ∈ (𝑆 “ (𝑀..^𝑁))))
28	27	imp 124	. . . . . . 7 ⊢ (((Fun 𝑆 ∧ (𝑥 + 𝑀) ∈ dom 𝑆) ∧ (𝑥 + 𝑀) ∈ (𝑀..^𝑁)) → (𝑆‘(𝑥 + 𝑀)) ∈ (𝑆 “ (𝑀..^𝑁)))
29	6, 16, 26, 28	syl21anc 1249	. . . . . 6 ⊢ (((𝑆 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆)))) ∧ 𝑥 ∈ (0..^(𝑁 − 𝑀))) → (𝑆‘(𝑥 + 𝑀)) ∈ (𝑆 “ (𝑀..^𝑁)))
30	29	fmpttd 5735	. . . . 5 ⊢ ((𝑆 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆)))) → (𝑥 ∈ (0..^(𝑁 − 𝑀)) ↦ (𝑆‘(𝑥 + 𝑀))):(0..^(𝑁 − 𝑀))⟶(𝑆 “ (𝑀..^𝑁)))
31		simpll 527	. . . . . . . . . . . 12 ⊢ (((𝑆 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆)))) ∧ 𝑥 ∈ (0..^(𝑁 − 𝑀))) → 𝑆 ∈ Word 𝐴)
32		elfzoelz 10269	. . . . . . . . . . . . . 14 ⊢ (𝑥 ∈ (0..^(𝑁 − 𝑀)) → 𝑥 ∈ ℤ)
33	32	adantl 277	. . . . . . . . . . . . 13 ⊢ (((𝑆 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆)))) ∧ 𝑥 ∈ (0..^(𝑁 − 𝑀))) → 𝑥 ∈ ℤ)
34	33, 24	zaddcld 9499	. . . . . . . . . . . 12 ⊢ (((𝑆 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆)))) ∧ 𝑥 ∈ (0..^(𝑁 − 𝑀))) → (𝑥 + 𝑀) ∈ ℤ)
35		fvexg 5595	. . . . . . . . . . . 12 ⊢ ((𝑆 ∈ Word 𝐴 ∧ (𝑥 + 𝑀) ∈ ℤ) → (𝑆‘(𝑥 + 𝑀)) ∈ V)
36	31, 34, 35	syl2anc 411	. . . . . . . . . . 11 ⊢ (((𝑆 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆)))) ∧ 𝑥 ∈ (0..^(𝑁 − 𝑀))) → (𝑆‘(𝑥 + 𝑀)) ∈ V)
37	36	ralrimiva 2579	. . . . . . . . . 10 ⊢ ((𝑆 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆)))) → ∀𝑥 ∈ (0..^(𝑁 − 𝑀))(𝑆‘(𝑥 + 𝑀)) ∈ V)
38		eqid 2205	. . . . . . . . . . 11 ⊢ (𝑥 ∈ (0..^(𝑁 − 𝑀)) ↦ (𝑆‘(𝑥 + 𝑀))) = (𝑥 ∈ (0..^(𝑁 − 𝑀)) ↦ (𝑆‘(𝑥 + 𝑀)))
39	38	fnmpt 5402	. . . . . . . . . 10 ⊢ (∀𝑥 ∈ (0..^(𝑁 − 𝑀))(𝑆‘(𝑥 + 𝑀)) ∈ V → (𝑥 ∈ (0..^(𝑁 − 𝑀)) ↦ (𝑆‘(𝑥 + 𝑀))) Fn (0..^(𝑁 − 𝑀)))
40	37, 39	syl 14	. . . . . . . . 9 ⊢ ((𝑆 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆)))) → (𝑥 ∈ (0..^(𝑁 − 𝑀)) ↦ (𝑆‘(𝑥 + 𝑀))) Fn (0..^(𝑁 − 𝑀)))
41		0z 9383	. . . . . . . . . . 11 ⊢ 0 ∈ ℤ
42		elfzel2 10145	. . . . . . . . . . . 12 ⊢ (𝑀 ∈ (0...𝑁) → 𝑁 ∈ ℤ)
43	42, 22	zsubcld 9500	. . . . . . . . . . 11 ⊢ (𝑀 ∈ (0...𝑁) → (𝑁 − 𝑀) ∈ ℤ)
44		fzofig 10577	. . . . . . . . . . 11 ⊢ ((0 ∈ ℤ ∧ (𝑁 − 𝑀) ∈ ℤ) → (0..^(𝑁 − 𝑀)) ∈ Fin)
45	41, 43, 44	sylancr 414	. . . . . . . . . 10 ⊢ (𝑀 ∈ (0...𝑁) → (0..^(𝑁 − 𝑀)) ∈ Fin)
46	45	ad2antrl 490	. . . . . . . . 9 ⊢ ((𝑆 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆)))) → (0..^(𝑁 − 𝑀)) ∈ Fin)
47		fihashfn 10945	. . . . . . . . 9 ⊢ (((𝑥 ∈ (0..^(𝑁 − 𝑀)) ↦ (𝑆‘(𝑥 + 𝑀))) Fn (0..^(𝑁 − 𝑀)) ∧ (0..^(𝑁 − 𝑀)) ∈ Fin) → (♯‘(𝑥 ∈ (0..^(𝑁 − 𝑀)) ↦ (𝑆‘(𝑥 + 𝑀)))) = (♯‘(0..^(𝑁 − 𝑀))))
48	40, 46, 47	syl2anc 411	. . . . . . . 8 ⊢ ((𝑆 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆)))) → (♯‘(𝑥 ∈ (0..^(𝑁 − 𝑀)) ↦ (𝑆‘(𝑥 + 𝑀)))) = (♯‘(0..^(𝑁 − 𝑀))))
49		fznn0sub 10179	. . . . . . . . . 10 ⊢ (𝑀 ∈ (0...𝑁) → (𝑁 − 𝑀) ∈ ℕ₀)
50		hashfzo0 10968	. . . . . . . . . 10 ⊢ ((𝑁 − 𝑀) ∈ ℕ₀ → (♯‘(0..^(𝑁 − 𝑀))) = (𝑁 − 𝑀))
51	49, 50	syl 14	. . . . . . . . 9 ⊢ (𝑀 ∈ (0...𝑁) → (♯‘(0..^(𝑁 − 𝑀))) = (𝑁 − 𝑀))
52	51	ad2antrl 490	. . . . . . . 8 ⊢ ((𝑆 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆)))) → (♯‘(0..^(𝑁 − 𝑀))) = (𝑁 − 𝑀))
53	48, 52	eqtrd 2238	. . . . . . 7 ⊢ ((𝑆 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆)))) → (♯‘(𝑥 ∈ (0..^(𝑁 − 𝑀)) ↦ (𝑆‘(𝑥 + 𝑀)))) = (𝑁 − 𝑀))
54	53	oveq2d 5960	. . . . . 6 ⊢ ((𝑆 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆)))) → (0..^(♯‘(𝑥 ∈ (0..^(𝑁 − 𝑀)) ↦ (𝑆‘(𝑥 + 𝑀))))) = (0..^(𝑁 − 𝑀)))
55	54	feq2d 5413	. . . . 5 ⊢ ((𝑆 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆)))) → ((𝑥 ∈ (0..^(𝑁 − 𝑀)) ↦ (𝑆‘(𝑥 + 𝑀))):(0..^(♯‘(𝑥 ∈ (0..^(𝑁 − 𝑀)) ↦ (𝑆‘(𝑥 + 𝑀)))))⟶(𝑆 “ (𝑀..^𝑁)) ↔ (𝑥 ∈ (0..^(𝑁 − 𝑀)) ↦ (𝑆‘(𝑥 + 𝑀))):(0..^(𝑁 − 𝑀))⟶(𝑆 “ (𝑀..^𝑁))))
56	30, 55	mpbird 167	. . . 4 ⊢ ((𝑆 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆)))) → (𝑥 ∈ (0..^(𝑁 − 𝑀)) ↦ (𝑆‘(𝑥 + 𝑀))):(0..^(♯‘(𝑥 ∈ (0..^(𝑁 − 𝑀)) ↦ (𝑆‘(𝑥 + 𝑀)))))⟶(𝑆 “ (𝑀..^𝑁)))
57	49	ad2antrl 490	. . . . 5 ⊢ ((𝑆 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆)))) → (𝑁 − 𝑀) ∈ ℕ₀)
58	53, 57	eqeltrd 2282	. . . 4 ⊢ ((𝑆 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆)))) → (♯‘(𝑥 ∈ (0..^(𝑁 − 𝑀)) ↦ (𝑆‘(𝑥 + 𝑀)))) ∈ ℕ₀)
59		iswrdinn0 10999	. . . 4 ⊢ (((𝑥 ∈ (0..^(𝑁 − 𝑀)) ↦ (𝑆‘(𝑥 + 𝑀))):(0..^(♯‘(𝑥 ∈ (0..^(𝑁 − 𝑀)) ↦ (𝑆‘(𝑥 + 𝑀)))))⟶(𝑆 “ (𝑀..^𝑁)) ∧ (♯‘(𝑥 ∈ (0..^(𝑁 − 𝑀)) ↦ (𝑆‘(𝑥 + 𝑀)))) ∈ ℕ₀) → (𝑥 ∈ (0..^(𝑁 − 𝑀)) ↦ (𝑆‘(𝑥 + 𝑀))) ∈ Word (𝑆 “ (𝑀..^𝑁)))
60	56, 58, 59	syl2anc 411	. . 3 ⊢ ((𝑆 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆)))) → (𝑥 ∈ (0..^(𝑁 − 𝑀)) ↦ (𝑆‘(𝑥 + 𝑀))) ∈ Word (𝑆 “ (𝑀..^𝑁)))
61	2, 60	eqeltrd 2282	. 2 ⊢ ((𝑆 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆)))) → (𝑆 substr ⟨𝑀, 𝑁⟩) ∈ Word (𝑆 “ (𝑀..^𝑁)))
62	61	3impb 1202	1 ⊢ ((𝑆 ∈ Word 𝐴 ∧ 𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(♯‘𝑆))) → (𝑆 substr ⟨𝑀, 𝑁⟩) ∈ Word (𝑆 “ (𝑀..^𝑁)))

Colors of variables: wff set class

Syntax hints: → wi 4 ∧ wa 104 ↔ wb 105 ∧ w3a 981 = wceq 1373 ∈ wcel 2176 ∀wral 2484 Vcvv 2772 ⟨cop 3636 ↦ cmpt 4105 dom cdm 4675 “ cima 4678 Fun wfun 5265 Fn wfn 5266 ⟶wf 5267 ‘cfv 5271 (class class class)co 5944 Fincfn 6827 0cc0 7925 + caddc 7928 − cmin 8243 ℕ₀cn0 9295 ℤcz 9372 ...cfz 10130 ..^cfzo 10264 ♯chash 10920 Word cword 10994 substr csubstr 11098

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 615 ax-in2 616 ax-io 711 ax-5 1470 ax-7 1471 ax-gen 1472 ax-ie1 1516 ax-ie2 1517 ax-8 1527 ax-10 1528 ax-11 1529 ax-i12 1530 ax-bndl 1532 ax-4 1533 ax-17 1549 ax-i9 1553 ax-ial 1557 ax-i5r 1558 ax-13 2178 ax-14 2179 ax-ext 2187 ax-coll 4159 ax-sep 4162 ax-nul 4170 ax-pow 4218 ax-pr 4253 ax-un 4480 ax-setind 4585 ax-iinf 4636 ax-cnex 8016 ax-resscn 8017 ax-1cn 8018 ax-1re 8019 ax-icn 8020 ax-addcl 8021 ax-addrcl 8022 ax-mulcl 8023 ax-addcom 8025 ax-addass 8027 ax-distr 8029 ax-i2m1 8030 ax-0lt1 8031 ax-0id 8033 ax-rnegex 8034 ax-cnre 8036 ax-pre-ltirr 8037 ax-pre-ltwlin 8038 ax-pre-lttrn 8039 ax-pre-apti 8040 ax-pre-ltadd 8041

This theorem depends on definitions: df-bi 117 df-dc 837 df-3or 982 df-3an 983 df-tru 1376 df-fal 1379 df-nf 1484 df-sb 1786 df-eu 2057 df-mo 2058 df-clab 2192 df-cleq 2198 df-clel 2201 df-nfc 2337 df-ne 2377 df-nel 2472 df-ral 2489 df-rex 2490 df-reu 2491 df-rab 2493 df-v 2774 df-sbc 2999 df-csb 3094 df-dif 3168 df-un 3170 df-in 3172 df-ss 3179 df-nul 3461 df-if 3572 df-pw 3618 df-sn 3639 df-pr 3640 df-op 3642 df-uni 3851 df-int 3886 df-iun 3929 df-br 4045 df-opab 4106 df-mpt 4107 df-tr 4143 df-id 4340 df-iord 4413 df-on 4415 df-ilim 4416 df-suc 4418 df-iom 4639 df-xp 4681 df-rel 4682 df-cnv 4683 df-co 4684 df-dm 4685 df-rn 4686 df-res 4687 df-ima 4688 df-iota 5232 df-fun 5273 df-fn 5274 df-f 5275 df-f1 5276 df-fo 5277 df-f1o 5278 df-fv 5279 df-riota 5899 df-ov 5947 df-oprab 5948 df-mpo 5949 df-1st 6226 df-2nd 6227 df-recs 6391 df-frec 6477 df-1o 6502 df-er 6620 df-en 6828 df-dom 6829 df-fin 6830 df-pnf 8109 df-mnf 8110 df-xr 8111 df-ltxr 8112 df-le 8113 df-sub 8245 df-neg 8246 df-inn 9037 df-n0 9296 df-z 9373 df-uz 9649 df-fz 10131 df-fzo 10265 df-ihash 10921 df-word 10995 df-substr 11099

This theorem is referenced by: (None)

W3C validator