swrdco - Metamath Proof Explorer

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Theorem swrdco 13583

Description: Mapping of words commutes with the substring operation. (Contributed by AV, 11-Nov-2018.)

**Assertion**
Ref	Expression
swrdco	⊢ ((𝑊 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) ∧ 𝐹:𝐴⟶𝐵) → (𝐹 ∘ (𝑊 substr ⟨𝑀, 𝑁⟩)) = ((𝐹 ∘ 𝑊) substr ⟨𝑀, 𝑁⟩))

Proof of Theorem swrdco Dummy variable 𝑖 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		ffn 6045	. . . 4 ⊢ (𝐹:𝐴⟶𝐵 → 𝐹 Fn 𝐴)
2	1	3ad2ant3 1084	. . 3 ⊢ ((𝑊 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) ∧ 𝐹:𝐴⟶𝐵) → 𝐹 Fn 𝐴)
3		swrdvalfn 13426	. . . . 5 ⊢ ((𝑊 ∈ Word 𝐴 ∧ 𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) → (𝑊 substr ⟨𝑀, 𝑁⟩) Fn (0..^(𝑁 − 𝑀)))
4	3	3expb 1266	. . . 4 ⊢ ((𝑊 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊)))) → (𝑊 substr ⟨𝑀, 𝑁⟩) Fn (0..^(𝑁 − 𝑀)))
5	4	3adant3 1081	. . 3 ⊢ ((𝑊 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) ∧ 𝐹:𝐴⟶𝐵) → (𝑊 substr ⟨𝑀, 𝑁⟩) Fn (0..^(𝑁 − 𝑀)))
6		swrdrn 13429	. . . . 5 ⊢ ((𝑊 ∈ Word 𝐴 ∧ 𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) → ran (𝑊 substr ⟨𝑀, 𝑁⟩) ⊆ 𝐴)
7	6	3expb 1266	. . . 4 ⊢ ((𝑊 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊)))) → ran (𝑊 substr ⟨𝑀, 𝑁⟩) ⊆ 𝐴)
8	7	3adant3 1081	. . 3 ⊢ ((𝑊 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) ∧ 𝐹:𝐴⟶𝐵) → ran (𝑊 substr ⟨𝑀, 𝑁⟩) ⊆ 𝐴)
9		fnco 5999	. . 3 ⊢ ((𝐹 Fn 𝐴 ∧ (𝑊 substr ⟨𝑀, 𝑁⟩) Fn (0..^(𝑁 − 𝑀)) ∧ ran (𝑊 substr ⟨𝑀, 𝑁⟩) ⊆ 𝐴) → (𝐹 ∘ (𝑊 substr ⟨𝑀, 𝑁⟩)) Fn (0..^(𝑁 − 𝑀)))
10	2, 5, 8, 9	syl3anc 1326	. 2 ⊢ ((𝑊 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) ∧ 𝐹:𝐴⟶𝐵) → (𝐹 ∘ (𝑊 substr ⟨𝑀, 𝑁⟩)) Fn (0..^(𝑁 − 𝑀)))
11		wrdco 13577	. . . 4 ⊢ ((𝑊 ∈ Word 𝐴 ∧ 𝐹:𝐴⟶𝐵) → (𝐹 ∘ 𝑊) ∈ Word 𝐵)
12	11	3adant2 1080	. . 3 ⊢ ((𝑊 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) ∧ 𝐹:𝐴⟶𝐵) → (𝐹 ∘ 𝑊) ∈ Word 𝐵)
13		simp2l 1087	. . 3 ⊢ ((𝑊 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) ∧ 𝐹:𝐴⟶𝐵) → 𝑀 ∈ (0...𝑁))
14		lenco 13578	. . . . . . . . . . . 12 ⊢ ((𝑊 ∈ Word 𝐴 ∧ 𝐹:𝐴⟶𝐵) → (#‘(𝐹 ∘ 𝑊)) = (#‘𝑊))
15	14	eqcomd 2628	. . . . . . . . . . 11 ⊢ ((𝑊 ∈ Word 𝐴 ∧ 𝐹:𝐴⟶𝐵) → (#‘𝑊) = (#‘(𝐹 ∘ 𝑊)))
16	15	oveq2d 6666	. . . . . . . . . 10 ⊢ ((𝑊 ∈ Word 𝐴 ∧ 𝐹:𝐴⟶𝐵) → (0...(#‘𝑊)) = (0...(#‘(𝐹 ∘ 𝑊))))
17	16	eleq2d 2687	. . . . . . . . 9 ⊢ ((𝑊 ∈ Word 𝐴 ∧ 𝐹:𝐴⟶𝐵) → (𝑁 ∈ (0...(#‘𝑊)) ↔ 𝑁 ∈ (0...(#‘(𝐹 ∘ 𝑊)))))
18	17	biimpd 219	. . . . . . . 8 ⊢ ((𝑊 ∈ Word 𝐴 ∧ 𝐹:𝐴⟶𝐵) → (𝑁 ∈ (0...(#‘𝑊)) → 𝑁 ∈ (0...(#‘(𝐹 ∘ 𝑊)))))
19	18	expcom 451	. . . . . . 7 ⊢ (𝐹:𝐴⟶𝐵 → (𝑊 ∈ Word 𝐴 → (𝑁 ∈ (0...(#‘𝑊)) → 𝑁 ∈ (0...(#‘(𝐹 ∘ 𝑊))))))
20	19	com13 88	. . . . . 6 ⊢ (𝑁 ∈ (0...(#‘𝑊)) → (𝑊 ∈ Word 𝐴 → (𝐹:𝐴⟶𝐵 → 𝑁 ∈ (0...(#‘(𝐹 ∘ 𝑊))))))
21	20	adantl 482	. . . . 5 ⊢ ((𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) → (𝑊 ∈ Word 𝐴 → (𝐹:𝐴⟶𝐵 → 𝑁 ∈ (0...(#‘(𝐹 ∘ 𝑊))))))
22	21	com12 32	. . . 4 ⊢ (𝑊 ∈ Word 𝐴 → ((𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) → (𝐹:𝐴⟶𝐵 → 𝑁 ∈ (0...(#‘(𝐹 ∘ 𝑊))))))
23	22	3imp 1256	. . 3 ⊢ ((𝑊 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) ∧ 𝐹:𝐴⟶𝐵) → 𝑁 ∈ (0...(#‘(𝐹 ∘ 𝑊))))
24		swrdvalfn 13426	. . 3 ⊢ (((𝐹 ∘ 𝑊) ∈ Word 𝐵 ∧ 𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘(𝐹 ∘ 𝑊)))) → ((𝐹 ∘ 𝑊) substr ⟨𝑀, 𝑁⟩) Fn (0..^(𝑁 − 𝑀)))
25	12, 13, 23, 24	syl3anc 1326	. 2 ⊢ ((𝑊 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) ∧ 𝐹:𝐴⟶𝐵) → ((𝐹 ∘ 𝑊) substr ⟨𝑀, 𝑁⟩) Fn (0..^(𝑁 − 𝑀)))
26		3anass 1042	. . . . . . 7 ⊢ ((𝑊 ∈ Word 𝐴 ∧ 𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) ↔ (𝑊 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊)))))
27	26	biimpri 218	. . . . . 6 ⊢ ((𝑊 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊)))) → (𝑊 ∈ Word 𝐴 ∧ 𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))))
28	27	3adant3 1081	. . . . 5 ⊢ ((𝑊 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) ∧ 𝐹:𝐴⟶𝐵) → (𝑊 ∈ Word 𝐴 ∧ 𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))))
29		swrdfv 13424	. . . . . 6 ⊢ (((𝑊 ∈ Word 𝐴 ∧ 𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) ∧ 𝑖 ∈ (0..^(𝑁 − 𝑀))) → ((𝑊 substr ⟨𝑀, 𝑁⟩)‘𝑖) = (𝑊‘(𝑖 + 𝑀)))
30	29	fveq2d 6195	. . . . 5 ⊢ (((𝑊 ∈ Word 𝐴 ∧ 𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) ∧ 𝑖 ∈ (0..^(𝑁 − 𝑀))) → (𝐹‘((𝑊 substr ⟨𝑀, 𝑁⟩)‘𝑖)) = (𝐹‘(𝑊‘(𝑖 + 𝑀))))
31	28, 30	sylan 488	. . . 4 ⊢ (((𝑊 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) ∧ 𝐹:𝐴⟶𝐵) ∧ 𝑖 ∈ (0..^(𝑁 − 𝑀))) → (𝐹‘((𝑊 substr ⟨𝑀, 𝑁⟩)‘𝑖)) = (𝐹‘(𝑊‘(𝑖 + 𝑀))))
32		wrdfn 13319	. . . . . . 7 ⊢ (𝑊 ∈ Word 𝐴 → 𝑊 Fn (0..^(#‘𝑊)))
33	32	3ad2ant1 1082	. . . . . 6 ⊢ ((𝑊 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) ∧ 𝐹:𝐴⟶𝐵) → 𝑊 Fn (0..^(#‘𝑊)))
34	33	adantr 481	. . . . 5 ⊢ (((𝑊 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) ∧ 𝐹:𝐴⟶𝐵) ∧ 𝑖 ∈ (0..^(𝑁 − 𝑀))) → 𝑊 Fn (0..^(#‘𝑊)))
35		elfzodifsumelfzo 12533	. . . . . . 7 ⊢ ((𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) → (𝑖 ∈ (0..^(𝑁 − 𝑀)) → (𝑖 + 𝑀) ∈ (0..^(#‘𝑊))))
36	35	3ad2ant2 1083	. . . . . 6 ⊢ ((𝑊 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) ∧ 𝐹:𝐴⟶𝐵) → (𝑖 ∈ (0..^(𝑁 − 𝑀)) → (𝑖 + 𝑀) ∈ (0..^(#‘𝑊))))
37	36	imp 445	. . . . 5 ⊢ (((𝑊 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) ∧ 𝐹:𝐴⟶𝐵) ∧ 𝑖 ∈ (0..^(𝑁 − 𝑀))) → (𝑖 + 𝑀) ∈ (0..^(#‘𝑊)))
38		fvco2 6273	. . . . 5 ⊢ ((𝑊 Fn (0..^(#‘𝑊)) ∧ (𝑖 + 𝑀) ∈ (0..^(#‘𝑊))) → ((𝐹 ∘ 𝑊)‘(𝑖 + 𝑀)) = (𝐹‘(𝑊‘(𝑖 + 𝑀))))
39	34, 37, 38	syl2anc 693	. . . 4 ⊢ (((𝑊 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) ∧ 𝐹:𝐴⟶𝐵) ∧ 𝑖 ∈ (0..^(𝑁 − 𝑀))) → ((𝐹 ∘ 𝑊)‘(𝑖 + 𝑀)) = (𝐹‘(𝑊‘(𝑖 + 𝑀))))
40	31, 39	eqtr4d 2659	. . 3 ⊢ (((𝑊 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) ∧ 𝐹:𝐴⟶𝐵) ∧ 𝑖 ∈ (0..^(𝑁 − 𝑀))) → (𝐹‘((𝑊 substr ⟨𝑀, 𝑁⟩)‘𝑖)) = ((𝐹 ∘ 𝑊)‘(𝑖 + 𝑀)))
41		fvco2 6273	. . . 4 ⊢ (((𝑊 substr ⟨𝑀, 𝑁⟩) Fn (0..^(𝑁 − 𝑀)) ∧ 𝑖 ∈ (0..^(𝑁 − 𝑀))) → ((𝐹 ∘ (𝑊 substr ⟨𝑀, 𝑁⟩))‘𝑖) = (𝐹‘((𝑊 substr ⟨𝑀, 𝑁⟩)‘𝑖)))
42	5, 41	sylan 488	. . 3 ⊢ (((𝑊 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) ∧ 𝐹:𝐴⟶𝐵) ∧ 𝑖 ∈ (0..^(𝑁 − 𝑀))) → ((𝐹 ∘ (𝑊 substr ⟨𝑀, 𝑁⟩))‘𝑖) = (𝐹‘((𝑊 substr ⟨𝑀, 𝑁⟩)‘𝑖)))
43	14	ancoms 469	. . . . . . . . . . . . . 14 ⊢ ((𝐹:𝐴⟶𝐵 ∧ 𝑊 ∈ Word 𝐴) → (#‘(𝐹 ∘ 𝑊)) = (#‘𝑊))
44	43	eqcomd 2628	. . . . . . . . . . . . 13 ⊢ ((𝐹:𝐴⟶𝐵 ∧ 𝑊 ∈ Word 𝐴) → (#‘𝑊) = (#‘(𝐹 ∘ 𝑊)))
45	44	oveq2d 6666	. . . . . . . . . . . 12 ⊢ ((𝐹:𝐴⟶𝐵 ∧ 𝑊 ∈ Word 𝐴) → (0...(#‘𝑊)) = (0...(#‘(𝐹 ∘ 𝑊))))
46	45	eleq2d 2687	. . . . . . . . . . 11 ⊢ ((𝐹:𝐴⟶𝐵 ∧ 𝑊 ∈ Word 𝐴) → (𝑁 ∈ (0...(#‘𝑊)) ↔ 𝑁 ∈ (0...(#‘(𝐹 ∘ 𝑊)))))
47	46	biimpd 219	. . . . . . . . . 10 ⊢ ((𝐹:𝐴⟶𝐵 ∧ 𝑊 ∈ Word 𝐴) → (𝑁 ∈ (0...(#‘𝑊)) → 𝑁 ∈ (0...(#‘(𝐹 ∘ 𝑊)))))
48	47	ex 450	. . . . . . . . 9 ⊢ (𝐹:𝐴⟶𝐵 → (𝑊 ∈ Word 𝐴 → (𝑁 ∈ (0...(#‘𝑊)) → 𝑁 ∈ (0...(#‘(𝐹 ∘ 𝑊))))))
49	48	com13 88	. . . . . . . 8 ⊢ (𝑁 ∈ (0...(#‘𝑊)) → (𝑊 ∈ Word 𝐴 → (𝐹:𝐴⟶𝐵 → 𝑁 ∈ (0...(#‘(𝐹 ∘ 𝑊))))))
50	49	adantl 482	. . . . . . 7 ⊢ ((𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) → (𝑊 ∈ Word 𝐴 → (𝐹:𝐴⟶𝐵 → 𝑁 ∈ (0...(#‘(𝐹 ∘ 𝑊))))))
51	50	com12 32	. . . . . 6 ⊢ (𝑊 ∈ Word 𝐴 → ((𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) → (𝐹:𝐴⟶𝐵 → 𝑁 ∈ (0...(#‘(𝐹 ∘ 𝑊))))))
52	51	3imp 1256	. . . . 5 ⊢ ((𝑊 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) ∧ 𝐹:𝐴⟶𝐵) → 𝑁 ∈ (0...(#‘(𝐹 ∘ 𝑊))))
53	12, 13, 52	3jca 1242	. . . 4 ⊢ ((𝑊 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) ∧ 𝐹:𝐴⟶𝐵) → ((𝐹 ∘ 𝑊) ∈ Word 𝐵 ∧ 𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘(𝐹 ∘ 𝑊)))))
54		swrdfv 13424	. . . 4 ⊢ ((((𝐹 ∘ 𝑊) ∈ Word 𝐵 ∧ 𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘(𝐹 ∘ 𝑊)))) ∧ 𝑖 ∈ (0..^(𝑁 − 𝑀))) → (((𝐹 ∘ 𝑊) substr ⟨𝑀, 𝑁⟩)‘𝑖) = ((𝐹 ∘ 𝑊)‘(𝑖 + 𝑀)))
55	53, 54	sylan 488	. . 3 ⊢ (((𝑊 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) ∧ 𝐹:𝐴⟶𝐵) ∧ 𝑖 ∈ (0..^(𝑁 − 𝑀))) → (((𝐹 ∘ 𝑊) substr ⟨𝑀, 𝑁⟩)‘𝑖) = ((𝐹 ∘ 𝑊)‘(𝑖 + 𝑀)))
56	40, 42, 55	3eqtr4d 2666	. 2 ⊢ (((𝑊 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) ∧ 𝐹:𝐴⟶𝐵) ∧ 𝑖 ∈ (0..^(𝑁 − 𝑀))) → ((𝐹 ∘ (𝑊 substr ⟨𝑀, 𝑁⟩))‘𝑖) = (((𝐹 ∘ 𝑊) substr ⟨𝑀, 𝑁⟩)‘𝑖))
57	10, 25, 56	eqfnfvd 6314	1 ⊢ ((𝑊 ∈ Word 𝐴 ∧ (𝑀 ∈ (0...𝑁) ∧ 𝑁 ∈ (0...(#‘𝑊))) ∧ 𝐹:𝐴⟶𝐵) → (𝐹 ∘ (𝑊 substr ⟨𝑀, 𝑁⟩)) = ((𝐹 ∘ 𝑊) substr ⟨𝑀, 𝑁⟩))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 384 ∧ w3a 1037 = wceq 1483 ∈ wcel 1990 ⊆ wss 3574 ⟨cop 4183 ran crn 5115 ∘ ccom 5118 Fn wfn 5883 ⟶wf 5884 ‘cfv 5888 (class class class)co 6650 0cc0 9936 + caddc 9939 − cmin 10266 ...cfz 12326 ..^cfzo 12465 #chash 13117 Word cword 13291 substr csubstr 13295

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-8 1992 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-rep 4771 ax-sep 4781 ax-nul 4789 ax-pow 4843 ax-pr 4906 ax-un 6949 ax-cnex 9992 ax-resscn 9993 ax-1cn 9994 ax-icn 9995 ax-addcl 9996 ax-addrcl 9997 ax-mulcl 9998 ax-mulrcl 9999 ax-mulcom 10000 ax-addass 10001 ax-mulass 10002 ax-distr 10003 ax-i2m1 10004 ax-1ne0 10005 ax-1rid 10006 ax-rnegex 10007 ax-rrecex 10008 ax-cnre 10009 ax-pre-lttri 10010 ax-pre-lttrn 10011 ax-pre-ltadd 10012 ax-pre-mulgt0 10013

This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3or 1038 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ne 2795 df-nel 2898 df-ral 2917 df-rex 2918 df-reu 2919 df-rab 2921 df-v 3202 df-sbc 3436 df-csb 3534 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-pss 3590 df-nul 3916 df-if 4087 df-pw 4160 df-sn 4178 df-pr 4180 df-tp 4182 df-op 4184 df-uni 4437 df-int 4476 df-iun 4522 df-br 4654 df-opab 4713 df-mpt 4730 df-tr 4753 df-id 5024 df-eprel 5029 df-po 5035 df-so 5036 df-fr 5073 df-we 5075 df-xp 5120 df-rel 5121 df-cnv 5122 df-co 5123 df-dm 5124 df-rn 5125 df-res 5126 df-ima 5127 df-pred 5680 df-ord 5726 df-on 5727 df-lim 5728 df-suc 5729 df-iota 5851 df-fun 5890 df-fn 5891 df-f 5892 df-f1 5893 df-fo 5894 df-f1o 5895 df-fv 5896 df-riota 6611 df-ov 6653 df-oprab 6654 df-mpt2 6655 df-om 7066 df-1st 7168 df-2nd 7169 df-wrecs 7407 df-recs 7468 df-rdg 7506 df-1o 7560 df-er 7742 df-en 7956 df-dom 7957 df-sdom 7958 df-fin 7959 df-card 8765 df-pnf 10076 df-mnf 10077 df-xr 10078 df-ltxr 10079 df-le 10080 df-sub 10268 df-neg 10269 df-nn 11021 df-n0 11293 df-z 11378 df-uz 11688 df-fz 12327 df-fzo 12466 df-hash 13118 df-word 13299 df-substr 13303

This theorem is referenced by: pfxco 41438

W3C validator