Theorem psrcom 19230

Description: Commutative law for the ring of power series. (Contributed by Mario Carneiro, 7-Jan-2015.)

Hypotheses

Ref	Expression
psrring.s	⊢ 𝑆 = (𝐼 mPwSer 𝑅)
psrring.i	⊢ (𝜑 → 𝐼 ∈ 𝑉)
psrring.r	⊢ (𝜑 → 𝑅 ∈ Ring)
psrass.d	⊢ 𝐷 = {𝑓 ∈ (ℕ0 ↑𝑚 𝐼) ∣ (◡𝑓 “ ℕ) ∈ Fin}
psrass.t	⊢ × = (.r‘𝑆)
psrass.b	⊢ 𝐵 = (Base‘𝑆)
psrass.x	⊢ (𝜑 → 𝑋 ∈ 𝐵)
psrass.y	⊢ (𝜑 → 𝑌 ∈ 𝐵)
psrcom.c	⊢ (𝜑 → 𝑅 ∈ CRing)

Assertion

Ref	Expression
psrcom	⊢ (𝜑 → (𝑋 × 𝑌) = (𝑌 × 𝑋))

Distinct variable groups:   𝑓,𝐼   𝑅,𝑓   𝑓,𝑋   𝑓,𝑌

Allowed substitution hints:   𝜑(𝑓)   𝐵(𝑓)   𝐷(𝑓)   𝑆(𝑓)   × (𝑓)   𝑉(𝑓)

Proof of Theorem psrcom

Dummy variables 𝑥 𝑘 𝑧 𝑔 𝑗 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		eqid 2610	. . . . 5 ⊢ (Base‘𝑅) = (Base‘𝑅)
2		eqid 2610	. . . . 5 ⊢ (0g‘𝑅) = (0g‘𝑅)
3		psrring.r	. . . . . . 7 ⊢ (𝜑 → 𝑅 ∈ Ring)
4		ringcmn 18404	. . . . . . 7 ⊢ (𝑅 ∈ Ring → 𝑅 ∈ CMnd)
5	3, 4	syl 17	. . . . . 6 ⊢ (𝜑 → 𝑅 ∈ CMnd)
6	5	adantr 480	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐷) → 𝑅 ∈ CMnd)
7		psrring.i	. . . . . 6 ⊢ (𝜑 → 𝐼 ∈ 𝑉)
8		psrass.d	. . . . . . 7 ⊢ 𝐷 = {𝑓 ∈ (ℕ0 ↑𝑚 𝐼) ∣ (◡𝑓 “ ℕ) ∈ Fin}
9	8	psrbaglefi 19193	. . . . . 6 ⊢ ((𝐼 ∈ 𝑉 ∧ 𝑥 ∈ 𝐷) → {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ∈ Fin)
10	7, 9	sylan 487	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐷) → {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ∈ Fin)
11	3	ad2antrr 758	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → 𝑅 ∈ Ring)
12		psrring.s	. . . . . . . . . 10 ⊢ 𝑆 = (𝐼 mPwSer 𝑅)
13		psrass.b	. . . . . . . . . 10 ⊢ 𝐵 = (Base‘𝑆)
14		psrass.x	. . . . . . . . . 10 ⊢ (𝜑 → 𝑋 ∈ 𝐵)
15	12, 1, 8, 13, 14	psrelbas 19200	. . . . . . . . 9 ⊢ (𝜑 → 𝑋:𝐷⟶(Base‘𝑅))
16	15	ad2antrr 758	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → 𝑋:𝐷⟶(Base‘𝑅))
17		simpr 476	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → 𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥})
18		breq1 4586	. . . . . . . . . . 11 ⊢ (𝑔 = 𝑘 → (𝑔 ∘𝑟 ≤ 𝑥 ↔ 𝑘 ∘𝑟 ≤ 𝑥))
19	18	elrab 3331	. . . . . . . . . 10 ⊢ (𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↔ (𝑘 ∈ 𝐷 ∧ 𝑘 ∘𝑟 ≤ 𝑥))
20	17, 19	sylib 207	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → (𝑘 ∈ 𝐷 ∧ 𝑘 ∘𝑟 ≤ 𝑥))
21	20	simpld 474	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → 𝑘 ∈ 𝐷)
22	16, 21	ffvelrnd 6268	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → (𝑋‘𝑘) ∈ (Base‘𝑅))
23		psrass.y	. . . . . . . . . 10 ⊢ (𝜑 → 𝑌 ∈ 𝐵)
24	12, 1, 8, 13, 23	psrelbas 19200	. . . . . . . . 9 ⊢ (𝜑 → 𝑌:𝐷⟶(Base‘𝑅))
25	24	ad2antrr 758	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → 𝑌:𝐷⟶(Base‘𝑅))
26	7	ad2antrr 758	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → 𝐼 ∈ 𝑉)
27		simplr 788	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → 𝑥 ∈ 𝐷)
28	8	psrbagf 19186	. . . . . . . . . . 11 ⊢ ((𝐼 ∈ 𝑉 ∧ 𝑘 ∈ 𝐷) → 𝑘:𝐼⟶ℕ0)
29	26, 21, 28	syl2anc 691	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → 𝑘:𝐼⟶ℕ0)
30	20	simprd 478	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → 𝑘 ∘𝑟 ≤ 𝑥)
31	8	psrbagcon 19192	. . . . . . . . . 10 ⊢ ((𝐼 ∈ 𝑉 ∧ (𝑥 ∈ 𝐷 ∧ 𝑘:𝐼⟶ℕ0 ∧ 𝑘 ∘𝑟 ≤ 𝑥)) → ((𝑥 ∘𝑓 − 𝑘) ∈ 𝐷 ∧ (𝑥 ∘𝑓 − 𝑘) ∘𝑟 ≤ 𝑥))
32	26, 27, 29, 30, 31	syl13anc 1320	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → ((𝑥 ∘𝑓 − 𝑘) ∈ 𝐷 ∧ (𝑥 ∘𝑓 − 𝑘) ∘𝑟 ≤ 𝑥))
33	32	simpld 474	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → (𝑥 ∘𝑓 − 𝑘) ∈ 𝐷)
34	25, 33	ffvelrnd 6268	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → (𝑌‘(𝑥 ∘𝑓 − 𝑘)) ∈ (Base‘𝑅))
35		eqid 2610	. . . . . . . 8 ⊢ (.r‘𝑅) = (.r‘𝑅)
36	1, 35	ringcl 18384	. . . . . . 7 ⊢ ((𝑅 ∈ Ring ∧ (𝑋‘𝑘) ∈ (Base‘𝑅) ∧ (𝑌‘(𝑥 ∘𝑓 − 𝑘)) ∈ (Base‘𝑅)) → ((𝑋‘𝑘)(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − 𝑘))) ∈ (Base‘𝑅))
37	11, 22, 34, 36	syl3anc 1318	. . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → ((𝑋‘𝑘)(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − 𝑘))) ∈ (Base‘𝑅))
38		eqid 2610	. . . . . 6 ⊢ (𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑋‘𝑘)(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − 𝑘)))) = (𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑋‘𝑘)(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − 𝑘))))
39	37, 38	fmptd 6292	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐷) → (𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑋‘𝑘)(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − 𝑘)))):{𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}⟶(Base‘𝑅))
40		ovex 6577	. . . . . . . . . 10 ⊢ (ℕ0 ↑𝑚 𝐼) ∈ V
41	8, 40	rabex2 4742	. . . . . . . . 9 ⊢ 𝐷 ∈ V
42	41	a1i 11	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐷) → 𝐷 ∈ V)
43		rabexg 4739	. . . . . . . 8 ⊢ (𝐷 ∈ V → {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ∈ V)
44	42, 43	syl 17	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐷) → {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ∈ V)
45		mptexg 6389	. . . . . . 7 ⊢ ({𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ∈ V → (𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑋‘𝑘)(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − 𝑘)))) ∈ V)
46	44, 45	syl 17	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐷) → (𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑋‘𝑘)(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − 𝑘)))) ∈ V)
47		funmpt 5840	. . . . . . 7 ⊢ Fun (𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑋‘𝑘)(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − 𝑘))))
48	47	a1i 11	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐷) → Fun (𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑋‘𝑘)(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − 𝑘)))))
49		fvex 6113	. . . . . . 7 ⊢ (0g‘𝑅) ∈ V
50	49	a1i 11	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐷) → (0g‘𝑅) ∈ V)
51		suppssdm 7195	. . . . . . . 8 ⊢ ((𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑋‘𝑘)(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − 𝑘)))) supp (0g‘𝑅)) ⊆ dom (𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑋‘𝑘)(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − 𝑘))))
52	38	dmmptss 5548	. . . . . . . 8 ⊢ dom (𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑋‘𝑘)(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − 𝑘)))) ⊆ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}
53	51, 52	sstri 3577	. . . . . . 7 ⊢ ((𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑋‘𝑘)(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − 𝑘)))) supp (0g‘𝑅)) ⊆ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}
54	53	a1i 11	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐷) → ((𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑋‘𝑘)(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − 𝑘)))) supp (0g‘𝑅)) ⊆ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥})
55		suppssfifsupp 8173	. . . . . 6 ⊢ ((((𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑋‘𝑘)(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − 𝑘)))) ∈ V ∧ Fun (𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑋‘𝑘)(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − 𝑘)))) ∧ (0g‘𝑅) ∈ V) ∧ ({𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ∈ Fin ∧ ((𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑋‘𝑘)(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − 𝑘)))) supp (0g‘𝑅)) ⊆ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥})) → (𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑋‘𝑘)(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − 𝑘)))) finSupp (0g‘𝑅))
56	46, 48, 50, 10, 54, 55	syl32anc 1326	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐷) → (𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑋‘𝑘)(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − 𝑘)))) finSupp (0g‘𝑅))
57		eqid 2610	. . . . . . 7 ⊢ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} = {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}
58	8, 57	psrbagconf1o 19195	. . . . . 6 ⊢ ((𝐼 ∈ 𝑉 ∧ 𝑥 ∈ 𝐷) → (𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ (𝑥 ∘𝑓 − 𝑗)):{𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}–1-1-onto→{𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥})
59	7, 58	sylan 487	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐷) → (𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ (𝑥 ∘𝑓 − 𝑗)):{𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}–1-1-onto→{𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥})
60	1, 2, 6, 10, 39, 56, 59	gsumf1o 18140	. . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐷) → (𝑅 Σg (𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑋‘𝑘)(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − 𝑘))))) = (𝑅 Σg ((𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑋‘𝑘)(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − 𝑘)))) ∘ (𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ (𝑥 ∘𝑓 − 𝑗)))))
61	7	ad2antrr 758	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → 𝐼 ∈ 𝑉)
62		simplr 788	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → 𝑥 ∈ 𝐷)
63		simpr 476	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥})
64	8, 57	psrbagconcl 19194	. . . . . . . 8 ⊢ ((𝐼 ∈ 𝑉 ∧ 𝑥 ∈ 𝐷 ∧ 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → (𝑥 ∘𝑓 − 𝑗) ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥})
65	61, 62, 63, 64	syl3anc 1318	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → (𝑥 ∘𝑓 − 𝑗) ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥})
66		eqidd 2611	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐷) → (𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ (𝑥 ∘𝑓 − 𝑗)) = (𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ (𝑥 ∘𝑓 − 𝑗)))
67		eqidd 2611	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐷) → (𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑋‘𝑘)(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − 𝑘)))) = (𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑋‘𝑘)(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − 𝑘)))))
68		fveq2 6103	. . . . . . . 8 ⊢ (𝑘 = (𝑥 ∘𝑓 − 𝑗) → (𝑋‘𝑘) = (𝑋‘(𝑥 ∘𝑓 − 𝑗)))
69		oveq2 6557	. . . . . . . . 9 ⊢ (𝑘 = (𝑥 ∘𝑓 − 𝑗) → (𝑥 ∘𝑓 − 𝑘) = (𝑥 ∘𝑓 − (𝑥 ∘𝑓 − 𝑗)))
70	69	fveq2d 6107	. . . . . . . 8 ⊢ (𝑘 = (𝑥 ∘𝑓 − 𝑗) → (𝑌‘(𝑥 ∘𝑓 − 𝑘)) = (𝑌‘(𝑥 ∘𝑓 − (𝑥 ∘𝑓 − 𝑗))))
71	68, 70	oveq12d 6567	. . . . . . 7 ⊢ (𝑘 = (𝑥 ∘𝑓 − 𝑗) → ((𝑋‘𝑘)(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − 𝑘))) = ((𝑋‘(𝑥 ∘𝑓 − 𝑗))(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − (𝑥 ∘𝑓 − 𝑗)))))
72	65, 66, 67, 71	fmptco 6303	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐷) → ((𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑋‘𝑘)(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − 𝑘)))) ∘ (𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ (𝑥 ∘𝑓 − 𝑗))) = (𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑋‘(𝑥 ∘𝑓 − 𝑗))(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − (𝑥 ∘𝑓 − 𝑗))))))
73	8	psrbagf 19186	. . . . . . . . . . . . . . . 16 ⊢ ((𝐼 ∈ 𝑉 ∧ 𝑥 ∈ 𝐷) → 𝑥:𝐼⟶ℕ0)
74	7, 73	sylan 487	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐷) → 𝑥:𝐼⟶ℕ0)
75	74	adantr 480	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → 𝑥:𝐼⟶ℕ0)
76	75	ffvelrnda 6267	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) ∧ 𝑧 ∈ 𝐼) → (𝑥‘𝑧) ∈ ℕ0)
77		breq1 4586	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑔 = 𝑗 → (𝑔 ∘𝑟 ≤ 𝑥 ↔ 𝑗 ∘𝑟 ≤ 𝑥))
78	77	elrab 3331	. . . . . . . . . . . . . . . . 17 ⊢ (𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↔ (𝑗 ∈ 𝐷 ∧ 𝑗 ∘𝑟 ≤ 𝑥))
79	63, 78	sylib 207	. . . . . . . . . . . . . . . 16 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → (𝑗 ∈ 𝐷 ∧ 𝑗 ∘𝑟 ≤ 𝑥))
80	79	simpld 474	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → 𝑗 ∈ 𝐷)
81	8	psrbagf 19186	. . . . . . . . . . . . . . 15 ⊢ ((𝐼 ∈ 𝑉 ∧ 𝑗 ∈ 𝐷) → 𝑗:𝐼⟶ℕ0)
82	61, 80, 81	syl2anc 691	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → 𝑗:𝐼⟶ℕ0)
83	82	ffvelrnda 6267	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) ∧ 𝑧 ∈ 𝐼) → (𝑗‘𝑧) ∈ ℕ0)
84		nn0cn 11179	. . . . . . . . . . . . . 14 ⊢ ((𝑥‘𝑧) ∈ ℕ0 → (𝑥‘𝑧) ∈ ℂ)
85		nn0cn 11179	. . . . . . . . . . . . . 14 ⊢ ((𝑗‘𝑧) ∈ ℕ0 → (𝑗‘𝑧) ∈ ℂ)
86		nncan 10189	. . . . . . . . . . . . . 14 ⊢ (((𝑥‘𝑧) ∈ ℂ ∧ (𝑗‘𝑧) ∈ ℂ) → ((𝑥‘𝑧) − ((𝑥‘𝑧) − (𝑗‘𝑧))) = (𝑗‘𝑧))
87	84, 85, 86	syl2an 493	. . . . . . . . . . . . 13 ⊢ (((𝑥‘𝑧) ∈ ℕ0 ∧ (𝑗‘𝑧) ∈ ℕ0) → ((𝑥‘𝑧) − ((𝑥‘𝑧) − (𝑗‘𝑧))) = (𝑗‘𝑧))
88	76, 83, 87	syl2anc 691	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) ∧ 𝑧 ∈ 𝐼) → ((𝑥‘𝑧) − ((𝑥‘𝑧) − (𝑗‘𝑧))) = (𝑗‘𝑧))
89	88	mpteq2dva 4672	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → (𝑧 ∈ 𝐼 ↦ ((𝑥‘𝑧) − ((𝑥‘𝑧) − (𝑗‘𝑧)))) = (𝑧 ∈ 𝐼 ↦ (𝑗‘𝑧)))
90		ovex 6577	. . . . . . . . . . . . 13 ⊢ ((𝑥‘𝑧) − (𝑗‘𝑧)) ∈ V
91	90	a1i 11	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) ∧ 𝑧 ∈ 𝐼) → ((𝑥‘𝑧) − (𝑗‘𝑧)) ∈ V)
92	75	feqmptd 6159	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → 𝑥 = (𝑧 ∈ 𝐼 ↦ (𝑥‘𝑧)))
93	82	feqmptd 6159	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → 𝑗 = (𝑧 ∈ 𝐼 ↦ (𝑗‘𝑧)))
94	61, 76, 83, 92, 93	offval2 6812	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → (𝑥 ∘𝑓 − 𝑗) = (𝑧 ∈ 𝐼 ↦ ((𝑥‘𝑧) − (𝑗‘𝑧))))
95	61, 76, 91, 92, 94	offval2 6812	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → (𝑥 ∘𝑓 − (𝑥 ∘𝑓 − 𝑗)) = (𝑧 ∈ 𝐼 ↦ ((𝑥‘𝑧) − ((𝑥‘𝑧) − (𝑗‘𝑧)))))
96	89, 95, 93	3eqtr4d 2654	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → (𝑥 ∘𝑓 − (𝑥 ∘𝑓 − 𝑗)) = 𝑗)
97	96	fveq2d 6107	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → (𝑌‘(𝑥 ∘𝑓 − (𝑥 ∘𝑓 − 𝑗))) = (𝑌‘𝑗))
98	97	oveq2d 6565	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → ((𝑋‘(𝑥 ∘𝑓 − 𝑗))(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − (𝑥 ∘𝑓 − 𝑗)))) = ((𝑋‘(𝑥 ∘𝑓 − 𝑗))(.r‘𝑅)(𝑌‘𝑗)))
99		psrcom.c	. . . . . . . . . 10 ⊢ (𝜑 → 𝑅 ∈ CRing)
100	99	ad2antrr 758	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → 𝑅 ∈ CRing)
101	15	ad2antrr 758	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → 𝑋:𝐷⟶(Base‘𝑅))
102	79	simprd 478	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → 𝑗 ∘𝑟 ≤ 𝑥)
103	8	psrbagcon 19192	. . . . . . . . . . . 12 ⊢ ((𝐼 ∈ 𝑉 ∧ (𝑥 ∈ 𝐷 ∧ 𝑗:𝐼⟶ℕ0 ∧ 𝑗 ∘𝑟 ≤ 𝑥)) → ((𝑥 ∘𝑓 − 𝑗) ∈ 𝐷 ∧ (𝑥 ∘𝑓 − 𝑗) ∘𝑟 ≤ 𝑥))
104	61, 62, 82, 102, 103	syl13anc 1320	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → ((𝑥 ∘𝑓 − 𝑗) ∈ 𝐷 ∧ (𝑥 ∘𝑓 − 𝑗) ∘𝑟 ≤ 𝑥))
105	104	simpld 474	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → (𝑥 ∘𝑓 − 𝑗) ∈ 𝐷)
106	101, 105	ffvelrnd 6268	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → (𝑋‘(𝑥 ∘𝑓 − 𝑗)) ∈ (Base‘𝑅))
107	24	ad2antrr 758	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → 𝑌:𝐷⟶(Base‘𝑅))
108	107, 80	ffvelrnd 6268	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → (𝑌‘𝑗) ∈ (Base‘𝑅))
109	1, 35	crngcom 18385	. . . . . . . . 9 ⊢ ((𝑅 ∈ CRing ∧ (𝑋‘(𝑥 ∘𝑓 − 𝑗)) ∈ (Base‘𝑅) ∧ (𝑌‘𝑗) ∈ (Base‘𝑅)) → ((𝑋‘(𝑥 ∘𝑓 − 𝑗))(.r‘𝑅)(𝑌‘𝑗)) = ((𝑌‘𝑗)(.r‘𝑅)(𝑋‘(𝑥 ∘𝑓 − 𝑗))))
110	100, 106, 108, 109	syl3anc 1318	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → ((𝑋‘(𝑥 ∘𝑓 − 𝑗))(.r‘𝑅)(𝑌‘𝑗)) = ((𝑌‘𝑗)(.r‘𝑅)(𝑋‘(𝑥 ∘𝑓 − 𝑗))))
111	98, 110	eqtrd 2644	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐷) ∧ 𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥}) → ((𝑋‘(𝑥 ∘𝑓 − 𝑗))(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − (𝑥 ∘𝑓 − 𝑗)))) = ((𝑌‘𝑗)(.r‘𝑅)(𝑋‘(𝑥 ∘𝑓 − 𝑗))))
112	111	mpteq2dva 4672	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐷) → (𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑋‘(𝑥 ∘𝑓 − 𝑗))(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − (𝑥 ∘𝑓 − 𝑗))))) = (𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑌‘𝑗)(.r‘𝑅)(𝑋‘(𝑥 ∘𝑓 − 𝑗)))))
113	72, 112	eqtrd 2644	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐷) → ((𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑋‘𝑘)(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − 𝑘)))) ∘ (𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ (𝑥 ∘𝑓 − 𝑗))) = (𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑌‘𝑗)(.r‘𝑅)(𝑋‘(𝑥 ∘𝑓 − 𝑗)))))
114	113	oveq2d 6565	. . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐷) → (𝑅 Σg ((𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑋‘𝑘)(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − 𝑘)))) ∘ (𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ (𝑥 ∘𝑓 − 𝑗)))) = (𝑅 Σg (𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑌‘𝑗)(.r‘𝑅)(𝑋‘(𝑥 ∘𝑓 − 𝑗))))))
115	60, 114	eqtrd 2644	. . 3 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐷) → (𝑅 Σg (𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑋‘𝑘)(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − 𝑘))))) = (𝑅 Σg (𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑌‘𝑗)(.r‘𝑅)(𝑋‘(𝑥 ∘𝑓 − 𝑗))))))
116	115	mpteq2dva 4672	. 2 ⊢ (𝜑 → (𝑥 ∈ 𝐷 ↦ (𝑅 Σg (𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑋‘𝑘)(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − 𝑘)))))) = (𝑥 ∈ 𝐷 ↦ (𝑅 Σg (𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑌‘𝑗)(.r‘𝑅)(𝑋‘(𝑥 ∘𝑓 − 𝑗)))))))
117		psrass.t	. . 3 ⊢ × = (.r‘𝑆)
118	12, 13, 35, 117, 8, 14, 23	psrmulfval 19206	. 2 ⊢ (𝜑 → (𝑋 × 𝑌) = (𝑥 ∈ 𝐷 ↦ (𝑅 Σg (𝑘 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑋‘𝑘)(.r‘𝑅)(𝑌‘(𝑥 ∘𝑓 − 𝑘)))))))
119	12, 13, 35, 117, 8, 23, 14	psrmulfval 19206	. 2 ⊢ (𝜑 → (𝑌 × 𝑋) = (𝑥 ∈ 𝐷 ↦ (𝑅 Σg (𝑗 ∈ {𝑔 ∈ 𝐷 ∣ 𝑔 ∘𝑟 ≤ 𝑥} ↦ ((𝑌‘𝑗)(.r‘𝑅)(𝑋‘(𝑥 ∘𝑓 − 𝑗)))))))
120	116, 118, 119	3eqtr4d 2654	1 ⊢ (𝜑 → (𝑋 × 𝑌) = (𝑌 × 𝑋))

Syntax hints:   → wi 4   ∧ wa 383   = wceq 1475   ∈ wcel 1977  {crab 2900  Vcvv 3173   ⊆ wss 3540   class class class wbr 4583   ↦ cmpt 4643  ^◡ccnv 5037  dom cdm 5038   “ cima 5041   ∘ ccom 5042  Fun wfun 5798  ⟶wf 5800  –1-1-onto→wf1o 5803  ‘cfv 5804  (class class class)co 6549   ∘_𝑓 cof 6793   ∘_𝑟 cofr 6794   supp csupp 7182   ↑_𝑚 cmap 7744  Fincfn 7841   finSupp cfsupp 8158  ℂcc 9813   ≤ cle 9954   − cmin 10145  ℕcn 10897  ℕ₀cn0 11169  Basecbs 15695  ._rcmulr 15769  0_gc0g 15923   Σ_g cgsu 15924  CMndccmn 18016  Ringcrg 18370  CRingccrg 18371   mPwSer cmps 19172

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-rmo 2904  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-se 4998  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-isom 5813  df-riota 6511  df-ov 6552  df-oprab 6553  df-mpt2 6554  df-of 6795  df-ofr 6796  df-om 6958  df-1st 7059  df-2nd 7060  df-supp 7183  df-wrecs 7294  df-recs 7355  df-rdg 7393  df-1o 7447  df-2o 7448  df-oadd 7451  df-er 7629  df-map 7746  df-pm 7747  df-ixp 7795  df-en 7842  df-dom 7843  df-sdom 7844  df-fin 7845  df-fsupp 8159  df-oi 8298  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-2 10956  df-3 10957  df-4 10958  df-5 10959  df-6 10960  df-7 10961  df-8 10962  df-9 10963  df-n0 11170  df-z 11255  df-uz 11564  df-fz 12198  df-fzo 12335  df-seq 12664  df-hash 12980  df-struct 15697  df-ndx 15698  df-slot 15699  df-base 15700  df-sets 15701  df-plusg 15781  df-mulr 15782  df-sca 15784  df-vsca 15785  df-tset 15787  df-0g 15925  df-gsum 15926  df-mgm 17065  df-sgrp 17107  df-mnd 17118  df-grp 17248  df-minusg 17249  df-cntz 17573  df-cmn 18018  df-abl 18019  df-mgp 18313  df-ur 18325  df-ring 18372  df-cring 18373  df-psr 19177

This theorem is referenced by:  psrcrng  19234