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Theorem rnghmsubcsetclem2 20654

Description: Lemma 2 for rnghmsubcsetc 20655. (Contributed by AV, 9-Mar-2020.)

**Hypotheses**
Ref	Expression
rnghmsubcsetc.c	⊢ 𝐶 = (ExtStrCat‘𝑈)
rnghmsubcsetc.u	⊢ (𝜑 → 𝑈 ∈ 𝑉)
rnghmsubcsetc.b	⊢ (𝜑 → 𝐵 = (Rng ∩ 𝑈))
rnghmsubcsetc.h	⊢ (𝜑 → 𝐻 = ( RngHom ↾ (𝐵 × 𝐵)))

**Assertion**
Ref	Expression
rnghmsubcsetclem2	⊢ ((𝜑 ∧ 𝑥 ∈ 𝐵) → ∀𝑦 ∈ 𝐵 ∀𝑧 ∈ 𝐵 ∀𝑓 ∈ (𝑥𝐻𝑦)∀𝑔 ∈ (𝑦𝐻𝑧)(𝑔(⟨𝑥, 𝑦⟩(comp‘𝐶)𝑧)𝑓) ∈ (𝑥𝐻𝑧))

Distinct variable groups: 𝐵,𝑓,𝑔,𝑥,𝑦,𝑧 𝐶,𝑓,𝑔,𝑥,𝑦,𝑧 𝑓,𝐻,𝑔,𝑥,𝑦,𝑧 𝑥,𝑈,𝑦 𝜑,𝑓,𝑔,𝑥,𝑦,𝑧 Allowed substitution hints: 𝑈(𝑧,𝑓,𝑔) 𝑉(𝑥,𝑦,𝑧,𝑓,𝑔)

**Proof of Theorem rnghmsubcsetclem2**
Step	Hyp	Ref	Expression
1		simpl 482	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐵) → 𝜑)
2	1	adantr 480	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) → 𝜑)
3	2	adantr 480	. . . . . 6 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) ∧ (𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧))) → 𝜑)
4		simpr 484	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) → (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵))
5	4	adantr 480	. . . . . 6 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) ∧ (𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧))) → (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵))
6		simpr 484	. . . . . . 7 ⊢ ((𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧)) → 𝑔 ∈ (𝑦𝐻𝑧))
7	6	adantl 481	. . . . . 6 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) ∧ (𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧))) → 𝑔 ∈ (𝑦𝐻𝑧))
8		rnghmsubcsetc.h	. . . . . . 7 ⊢ (𝜑 → 𝐻 = ( RngHom ↾ (𝐵 × 𝐵)))
9	8	rnghmresel 20642	. . . . . 6 ⊢ ((𝜑 ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵) ∧ 𝑔 ∈ (𝑦𝐻𝑧)) → 𝑔 ∈ (𝑦 RngHom 𝑧))
10	3, 5, 7, 9	syl3anc 1371	. . . . 5 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) ∧ (𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧))) → 𝑔 ∈ (𝑦 RngHom 𝑧))
11		simpr 484	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐵) → 𝑥 ∈ 𝐵)
12		simpl 482	. . . . . . . 8 ⊢ ((𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵) → 𝑦 ∈ 𝐵)
13	11, 12	anim12i 612	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) → (𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵))
14	13	adantr 480	. . . . . 6 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) ∧ (𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧))) → (𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵))
15		simprl 770	. . . . . 6 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) ∧ (𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧))) → 𝑓 ∈ (𝑥𝐻𝑦))
16	8	rnghmresel 20642	. . . . . 6 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) ∧ 𝑓 ∈ (𝑥𝐻𝑦)) → 𝑓 ∈ (𝑥 RngHom 𝑦))
17	3, 14, 15, 16	syl3anc 1371	. . . . 5 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) ∧ (𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧))) → 𝑓 ∈ (𝑥 RngHom 𝑦))
18		rnghmco 20483	. . . . 5 ⊢ ((𝑔 ∈ (𝑦 RngHom 𝑧) ∧ 𝑓 ∈ (𝑥 RngHom 𝑦)) → (𝑔 ∘ 𝑓) ∈ (𝑥 RngHom 𝑧))
19	10, 17, 18	syl2anc 583	. . . 4 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) ∧ (𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧))) → (𝑔 ∘ 𝑓) ∈ (𝑥 RngHom 𝑧))
20		rnghmsubcsetc.c	. . . . 5 ⊢ 𝐶 = (ExtStrCat‘𝑈)
21		rnghmsubcsetc.u	. . . . . 6 ⊢ (𝜑 → 𝑈 ∈ 𝑉)
22	21	ad3antrrr 729	. . . . 5 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) ∧ (𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧))) → 𝑈 ∈ 𝑉)
23		eqid 2740	. . . . 5 ⊢ (comp‘𝐶) = (comp‘𝐶)
24		rnghmsubcsetc.b	. . . . . . . . . 10 ⊢ (𝜑 → 𝐵 = (Rng ∩ 𝑈))
25	24	eleq2d 2830	. . . . . . . . 9 ⊢ (𝜑 → (𝑥 ∈ 𝐵 ↔ 𝑥 ∈ (Rng ∩ 𝑈)))
26		elinel2 4225	. . . . . . . . 9 ⊢ (𝑥 ∈ (Rng ∩ 𝑈) → 𝑥 ∈ 𝑈)
27	25, 26	biimtrdi 253	. . . . . . . 8 ⊢ (𝜑 → (𝑥 ∈ 𝐵 → 𝑥 ∈ 𝑈))
28	27	imp 406	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐵) → 𝑥 ∈ 𝑈)
29	28	adantr 480	. . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) → 𝑥 ∈ 𝑈)
30	29	adantr 480	. . . . 5 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) ∧ (𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧))) → 𝑥 ∈ 𝑈)
31	24	eleq2d 2830	. . . . . . . . . . 11 ⊢ (𝜑 → (𝑦 ∈ 𝐵 ↔ 𝑦 ∈ (Rng ∩ 𝑈)))
32		elinel2 4225	. . . . . . . . . . 11 ⊢ (𝑦 ∈ (Rng ∩ 𝑈) → 𝑦 ∈ 𝑈)
33	31, 32	biimtrdi 253	. . . . . . . . . 10 ⊢ (𝜑 → (𝑦 ∈ 𝐵 → 𝑦 ∈ 𝑈))
34	33	adantr 480	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐵) → (𝑦 ∈ 𝐵 → 𝑦 ∈ 𝑈))
35	34	com12 32	. . . . . . . 8 ⊢ (𝑦 ∈ 𝐵 → ((𝜑 ∧ 𝑥 ∈ 𝐵) → 𝑦 ∈ 𝑈))
36	35	adantr 480	. . . . . . 7 ⊢ ((𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵) → ((𝜑 ∧ 𝑥 ∈ 𝐵) → 𝑦 ∈ 𝑈))
37	36	impcom 407	. . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) → 𝑦 ∈ 𝑈)
38	37	adantr 480	. . . . 5 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) ∧ (𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧))) → 𝑦 ∈ 𝑈)
39	24	eleq2d 2830	. . . . . . . . . 10 ⊢ (𝜑 → (𝑧 ∈ 𝐵 ↔ 𝑧 ∈ (Rng ∩ 𝑈)))
40		elinel2 4225	. . . . . . . . . 10 ⊢ (𝑧 ∈ (Rng ∩ 𝑈) → 𝑧 ∈ 𝑈)
41	39, 40	biimtrdi 253	. . . . . . . . 9 ⊢ (𝜑 → (𝑧 ∈ 𝐵 → 𝑧 ∈ 𝑈))
42	41	adantr 480	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐵) → (𝑧 ∈ 𝐵 → 𝑧 ∈ 𝑈))
43	42	adantld 490	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐵) → ((𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵) → 𝑧 ∈ 𝑈))
44	43	imp 406	. . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) → 𝑧 ∈ 𝑈)
45	44	adantr 480	. . . . 5 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) ∧ (𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧))) → 𝑧 ∈ 𝑈)
46		eqid 2740	. . . . 5 ⊢ (Base‘𝑥) = (Base‘𝑥)
47		eqid 2740	. . . . 5 ⊢ (Base‘𝑦) = (Base‘𝑦)
48		eqid 2740	. . . . 5 ⊢ (Base‘𝑧) = (Base‘𝑧)
49		simprl 770	. . . . . . . . . . . . . . 15 ⊢ ((𝑦 ∈ 𝐵 ∧ (𝜑 ∧ 𝑥 ∈ 𝐵)) → 𝜑)
50	49	adantr 480	. . . . . . . . . . . . . 14 ⊢ (((𝑦 ∈ 𝐵 ∧ (𝜑 ∧ 𝑥 ∈ 𝐵)) ∧ 𝑓 ∈ (𝑥𝐻𝑦)) → 𝜑)
51	11	anim1i 614	. . . . . . . . . . . . . . . 16 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ 𝑦 ∈ 𝐵) → (𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵))
52	51	ancoms 458	. . . . . . . . . . . . . . 15 ⊢ ((𝑦 ∈ 𝐵 ∧ (𝜑 ∧ 𝑥 ∈ 𝐵)) → (𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵))
53	52	adantr 480	. . . . . . . . . . . . . 14 ⊢ (((𝑦 ∈ 𝐵 ∧ (𝜑 ∧ 𝑥 ∈ 𝐵)) ∧ 𝑓 ∈ (𝑥𝐻𝑦)) → (𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵))
54		simpr 484	. . . . . . . . . . . . . 14 ⊢ (((𝑦 ∈ 𝐵 ∧ (𝜑 ∧ 𝑥 ∈ 𝐵)) ∧ 𝑓 ∈ (𝑥𝐻𝑦)) → 𝑓 ∈ (𝑥𝐻𝑦))
55	50, 53, 54, 16	syl3anc 1371	. . . . . . . . . . . . 13 ⊢ (((𝑦 ∈ 𝐵 ∧ (𝜑 ∧ 𝑥 ∈ 𝐵)) ∧ 𝑓 ∈ (𝑥𝐻𝑦)) → 𝑓 ∈ (𝑥 RngHom 𝑦))
56	46, 47	rnghmf 20474	. . . . . . . . . . . . 13 ⊢ (𝑓 ∈ (𝑥 RngHom 𝑦) → 𝑓:(Base‘𝑥)⟶(Base‘𝑦))
57	55, 56	syl 17	. . . . . . . . . . . 12 ⊢ (((𝑦 ∈ 𝐵 ∧ (𝜑 ∧ 𝑥 ∈ 𝐵)) ∧ 𝑓 ∈ (𝑥𝐻𝑦)) → 𝑓:(Base‘𝑥)⟶(Base‘𝑦))
58	57	ex 412	. . . . . . . . . . 11 ⊢ ((𝑦 ∈ 𝐵 ∧ (𝜑 ∧ 𝑥 ∈ 𝐵)) → (𝑓 ∈ (𝑥𝐻𝑦) → 𝑓:(Base‘𝑥)⟶(Base‘𝑦)))
59	58	ex 412	. . . . . . . . . 10 ⊢ (𝑦 ∈ 𝐵 → ((𝜑 ∧ 𝑥 ∈ 𝐵) → (𝑓 ∈ (𝑥𝐻𝑦) → 𝑓:(Base‘𝑥)⟶(Base‘𝑦))))
60	59	adantr 480	. . . . . . . . 9 ⊢ ((𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵) → ((𝜑 ∧ 𝑥 ∈ 𝐵) → (𝑓 ∈ (𝑥𝐻𝑦) → 𝑓:(Base‘𝑥)⟶(Base‘𝑦))))
61	60	impcom 407	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) → (𝑓 ∈ (𝑥𝐻𝑦) → 𝑓:(Base‘𝑥)⟶(Base‘𝑦)))
62	61	com12 32	. . . . . . 7 ⊢ (𝑓 ∈ (𝑥𝐻𝑦) → (((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) → 𝑓:(Base‘𝑥)⟶(Base‘𝑦)))
63	62	adantr 480	. . . . . 6 ⊢ ((𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧)) → (((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) → 𝑓:(Base‘𝑥)⟶(Base‘𝑦)))
64	63	impcom 407	. . . . 5 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) ∧ (𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧))) → 𝑓:(Base‘𝑥)⟶(Base‘𝑦))
65	9	3expa 1118	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) ∧ 𝑔 ∈ (𝑦𝐻𝑧)) → 𝑔 ∈ (𝑦 RngHom 𝑧))
66	47, 48	rnghmf 20474	. . . . . . . . . 10 ⊢ (𝑔 ∈ (𝑦 RngHom 𝑧) → 𝑔:(Base‘𝑦)⟶(Base‘𝑧))
67	65, 66	syl 17	. . . . . . . . 9 ⊢ (((𝜑 ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) ∧ 𝑔 ∈ (𝑦𝐻𝑧)) → 𝑔:(Base‘𝑦)⟶(Base‘𝑧))
68	67	ex 412	. . . . . . . 8 ⊢ ((𝜑 ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) → (𝑔 ∈ (𝑦𝐻𝑧) → 𝑔:(Base‘𝑦)⟶(Base‘𝑧)))
69	68	adantlr 714	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) → (𝑔 ∈ (𝑦𝐻𝑧) → 𝑔:(Base‘𝑦)⟶(Base‘𝑧)))
70	69	adantld 490	. . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) → ((𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧)) → 𝑔:(Base‘𝑦)⟶(Base‘𝑧)))
71	70	imp 406	. . . . 5 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) ∧ (𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧))) → 𝑔:(Base‘𝑦)⟶(Base‘𝑧))
72	20, 22, 23, 30, 38, 45, 46, 47, 48, 64, 71	estrcco 18198	. . . 4 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) ∧ (𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧))) → (𝑔(⟨𝑥, 𝑦⟩(comp‘𝐶)𝑧)𝑓) = (𝑔 ∘ 𝑓))
73	8	adantr 480	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐵) → 𝐻 = ( RngHom ↾ (𝐵 × 𝐵)))
74	73	oveqdr 7476	. . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) → (𝑥𝐻𝑧) = (𝑥( RngHom ↾ (𝐵 × 𝐵))𝑧))
75		ovres 7616	. . . . . . 7 ⊢ ((𝑥 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵) → (𝑥( RngHom ↾ (𝐵 × 𝐵))𝑧) = (𝑥 RngHom 𝑧))
76	75	ad2ant2l 745	. . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) → (𝑥( RngHom ↾ (𝐵 × 𝐵))𝑧) = (𝑥 RngHom 𝑧))
77	74, 76	eqtrd 2780	. . . . 5 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) → (𝑥𝐻𝑧) = (𝑥 RngHom 𝑧))
78	77	adantr 480	. . . 4 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) ∧ (𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧))) → (𝑥𝐻𝑧) = (𝑥 RngHom 𝑧))
79	19, 72, 78	3eltr4d 2859	. . 3 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) ∧ (𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧))) → (𝑔(⟨𝑥, 𝑦⟩(comp‘𝐶)𝑧)𝑓) ∈ (𝑥𝐻𝑧))
80	79	ralrimivva 3208	. 2 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐵) ∧ (𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) → ∀𝑓 ∈ (𝑥𝐻𝑦)∀𝑔 ∈ (𝑦𝐻𝑧)(𝑔(⟨𝑥, 𝑦⟩(comp‘𝐶)𝑧)𝑓) ∈ (𝑥𝐻𝑧))
81	80	ralrimivva 3208	1 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐵) → ∀𝑦 ∈ 𝐵 ∀𝑧 ∈ 𝐵 ∀𝑓 ∈ (𝑥𝐻𝑦)∀𝑔 ∈ (𝑦𝐻𝑧)(𝑔(⟨𝑥, 𝑦⟩(comp‘𝐶)𝑧)𝑓) ∈ (𝑥𝐻𝑧))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 395 = wceq 1537 ∈ wcel 2108 ∀wral 3067 ∩ cin 3975 ⟨cop 4654 × cxp 5698 ↾ cres 5702 ∘ ccom 5704 ⟶wf 6569 ‘cfv 6573 (class class class)co 7448 Basecbs 17258 compcco 17323 ExtStrCatcestrc 18190 Rngcrng 20179 RngHom crnghm 20460

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1793 ax-4 1807 ax-5 1909 ax-6 1967 ax-7 2007 ax-8 2110 ax-9 2118 ax-10 2141 ax-11 2158 ax-12 2178 ax-ext 2711 ax-rep 5303 ax-sep 5317 ax-nul 5324 ax-pow 5383 ax-pr 5447 ax-un 7770 ax-cnex 11240 ax-resscn 11241 ax-1cn 11242 ax-icn 11243 ax-addcl 11244 ax-addrcl 11245 ax-mulcl 11246 ax-mulrcl 11247 ax-mulcom 11248 ax-addass 11249 ax-mulass 11250 ax-distr 11251 ax-i2m1 11252 ax-1ne0 11253 ax-1rid 11254 ax-rnegex 11255 ax-rrecex 11256 ax-cnre 11257 ax-pre-lttri 11258 ax-pre-lttrn 11259 ax-pre-ltadd 11260 ax-pre-mulgt0 11261

This theorem depends on definitions: df-bi 207 df-an 396 df-or 847 df-3or 1088 df-3an 1089 df-tru 1540 df-fal 1550 df-ex 1778 df-nf 1782 df-sb 2065 df-mo 2543 df-eu 2572 df-clab 2718 df-cleq 2732 df-clel 2819 df-nfc 2895 df-ne 2947 df-nel 3053 df-ral 3068 df-rex 3077 df-rmo 3388 df-reu 3389 df-rab 3444 df-v 3490 df-sbc 3805 df-csb 3922 df-dif 3979 df-un 3981 df-in 3983 df-ss 3993 df-pss 3996 df-nul 4353 df-if 4549 df-pw 4624 df-sn 4649 df-pr 4651 df-tp 4653 df-op 4655 df-uni 4932 df-iun 5017 df-br 5167 df-opab 5229 df-mpt 5250 df-tr 5284 df-id 5593 df-eprel 5599 df-po 5607 df-so 5608 df-fr 5652 df-we 5654 df-xp 5706 df-rel 5707 df-cnv 5708 df-co 5709 df-dm 5710 df-rn 5711 df-res 5712 df-ima 5713 df-pred 6332 df-ord 6398 df-on 6399 df-lim 6400 df-suc 6401 df-iota 6525 df-fun 6575 df-fn 6576 df-f 6577 df-f1 6578 df-fo 6579 df-f1o 6580 df-fv 6581 df-riota 7404 df-ov 7451 df-oprab 7452 df-mpo 7453 df-om 7904 df-1st 8030 df-2nd 8031 df-frecs 8322 df-wrecs 8353 df-recs 8427 df-rdg 8466 df-1o 8522 df-er 8763 df-map 8886 df-en 9004 df-dom 9005 df-sdom 9006 df-fin 9007 df-pnf 11326 df-mnf 11327 df-xr 11328 df-ltxr 11329 df-le 11330 df-sub 11522 df-neg 11523 df-nn 12294 df-2 12356 df-3 12357 df-4 12358 df-5 12359 df-6 12360 df-7 12361 df-8 12362 df-9 12363 df-n0 12554 df-z 12640 df-dec 12759 df-uz 12904 df-fz 13568 df-struct 17194 df-sets 17211 df-slot 17229 df-ndx 17241 df-base 17259 df-plusg 17324 df-hom 17335 df-cco 17336 df-0g 17501 df-estrc 18191 df-mgm 18678 df-mgmhm 18730 df-sgrp 18757 df-mnd 18773 df-mhm 18818 df-grp 18976 df-ghm 19253 df-abl 19825 df-mgp 20162 df-rng 20180 df-rnghm 20462

This theorem is referenced by: rnghmsubcsetc 20655

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