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Theorem isercolllem1 14395

Description: Lemma for isercoll 14398. (Contributed by Mario Carneiro, 6-Apr-2015.)

**Hypotheses**
Ref	Expression
isercoll.z	⊢ 𝑍 = (ℤ_≥‘𝑀)
isercoll.m	⊢ (𝜑 → 𝑀 ∈ ℤ)
isercoll.g	⊢ (𝜑 → 𝐺:ℕ⟶𝑍)
isercoll.i	⊢ ((𝜑 ∧ 𝑘 ∈ ℕ) → (𝐺‘𝑘) < (𝐺‘(𝑘 + 1)))

**Assertion**
Ref	Expression
isercolllem1	⊢ ((𝜑 ∧ 𝑆 ⊆ ℕ) → (𝐺 ↾ 𝑆) Isom < , < (𝑆, (𝐺 “ 𝑆)))

Distinct variable groups: 𝜑,𝑘 𝑘,𝐺 𝑘,𝑀 Allowed substitution hints: 𝑆(𝑘) 𝑍(𝑘)

Proof of Theorem isercolllem1 Dummy variables 𝑛 𝑥 𝑦 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		isercoll.z	. . . . . . . . . . 11 ⊢ 𝑍 = (ℤ_≥‘𝑀)
2		uzssz 11707	. . . . . . . . . . 11 ⊢ (ℤ_≥‘𝑀) ⊆ ℤ
3	1, 2	eqsstri 3635	. . . . . . . . . 10 ⊢ 𝑍 ⊆ ℤ
4		zssre 11384	. . . . . . . . . 10 ⊢ ℤ ⊆ ℝ
5	3, 4	sstri 3612	. . . . . . . . 9 ⊢ 𝑍 ⊆ ℝ
6		isercoll.g	. . . . . . . . . . 11 ⊢ (𝜑 → 𝐺:ℕ⟶𝑍)
7	6	ad2antrr 762	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → 𝐺:ℕ⟶𝑍)
8		simplrl 800	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → 𝑥 ∈ ℕ)
9	7, 8	ffvelrnd 6360	. . . . . . . . 9 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → (𝐺‘𝑥) ∈ 𝑍)
10	5, 9	sseldi 3601	. . . . . . . 8 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → (𝐺‘𝑥) ∈ ℝ)
11		simplrr 801	. . . . . . . . 9 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → 𝑦 ∈ ℕ)
12	11	nnred 11035	. . . . . . . 8 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → 𝑦 ∈ ℝ)
13	10, 12	resubcld 10458	. . . . . . 7 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → ((𝐺‘𝑥) − 𝑦) ∈ ℝ)
14	8	nnred 11035	. . . . . . . 8 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → 𝑥 ∈ ℝ)
15	10, 14	resubcld 10458	. . . . . . 7 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → ((𝐺‘𝑥) − 𝑥) ∈ ℝ)
16	7, 11	ffvelrnd 6360	. . . . . . . . 9 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → (𝐺‘𝑦) ∈ 𝑍)
17	5, 16	sseldi 3601	. . . . . . . 8 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → (𝐺‘𝑦) ∈ ℝ)
18	17, 12	resubcld 10458	. . . . . . 7 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → ((𝐺‘𝑦) − 𝑦) ∈ ℝ)
19		simpr 477	. . . . . . . 8 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → 𝑥 < 𝑦)
20	14, 12, 10, 19	ltsub2dd 10640	. . . . . . 7 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → ((𝐺‘𝑥) − 𝑦) < ((𝐺‘𝑥) − 𝑥))
21	8	nnzd 11481	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → 𝑥 ∈ ℤ)
22	11	nnzd 11481	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → 𝑦 ∈ ℤ)
23	14, 12, 19	ltled 10185	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → 𝑥 ≤ 𝑦)
24		eluz2 11693	. . . . . . . . . 10 ⊢ (𝑦 ∈ (ℤ_≥‘𝑥) ↔ (𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ ∧ 𝑥 ≤ 𝑦))
25	21, 22, 23, 24	syl3anbrc 1246	. . . . . . . . 9 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → 𝑦 ∈ (ℤ_≥‘𝑥))
26		elfzuz 12338	. . . . . . . . . 10 ⊢ (𝑘 ∈ (𝑥...𝑦) → 𝑘 ∈ (ℤ_≥‘𝑥))
27		eluznn 11758	. . . . . . . . . . . 12 ⊢ ((𝑥 ∈ ℕ ∧ 𝑘 ∈ (ℤ_≥‘𝑥)) → 𝑘 ∈ ℕ)
28	8, 27	sylan 488	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ (ℤ_≥‘𝑥)) → 𝑘 ∈ ℕ)
29		fveq2 6191	. . . . . . . . . . . . . . 15 ⊢ (𝑛 = 𝑘 → (𝐺‘𝑛) = (𝐺‘𝑘))
30		id 22	. . . . . . . . . . . . . . 15 ⊢ (𝑛 = 𝑘 → 𝑛 = 𝑘)
31	29, 30	oveq12d 6668	. . . . . . . . . . . . . 14 ⊢ (𝑛 = 𝑘 → ((𝐺‘𝑛) − 𝑛) = ((𝐺‘𝑘) − 𝑘))
32		eqid 2622	. . . . . . . . . . . . . 14 ⊢ (𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛)) = (𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))
33		ovex 6678	. . . . . . . . . . . . . 14 ⊢ ((𝐺‘𝑘) − 𝑘) ∈ V
34	31, 32, 33	fvmpt 6282	. . . . . . . . . . . . 13 ⊢ (𝑘 ∈ ℕ → ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘𝑘) = ((𝐺‘𝑘) − 𝑘))
35	34	adantl 482	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘𝑘) = ((𝐺‘𝑘) − 𝑘))
36	7	ffvelrnda 6359	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → (𝐺‘𝑘) ∈ 𝑍)
37	5, 36	sseldi 3601	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → (𝐺‘𝑘) ∈ ℝ)
38		nnre 11027	. . . . . . . . . . . . . 14 ⊢ (𝑘 ∈ ℕ → 𝑘 ∈ ℝ)
39	38	adantl 482	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → 𝑘 ∈ ℝ)
40	37, 39	resubcld 10458	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → ((𝐺‘𝑘) − 𝑘) ∈ ℝ)
41	35, 40	eqeltrd 2701	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘𝑘) ∈ ℝ)
42	28, 41	syldan 487	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ (ℤ_≥‘𝑥)) → ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘𝑘) ∈ ℝ)
43	26, 42	sylan2 491	. . . . . . . . 9 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ (𝑥...𝑦)) → ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘𝑘) ∈ ℝ)
44		elfzuz 12338	. . . . . . . . . 10 ⊢ (𝑘 ∈ (𝑥...(𝑦 − 1)) → 𝑘 ∈ (ℤ_≥‘𝑥))
45		peano2nn 11032	. . . . . . . . . . . . . . . . 17 ⊢ (𝑘 ∈ ℕ → (𝑘 + 1) ∈ ℕ)
46		ffvelrn 6357	. . . . . . . . . . . . . . . . 17 ⊢ ((𝐺:ℕ⟶𝑍 ∧ (𝑘 + 1) ∈ ℕ) → (𝐺‘(𝑘 + 1)) ∈ 𝑍)
47	7, 45, 46	syl2an 494	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → (𝐺‘(𝑘 + 1)) ∈ 𝑍)
48	5, 47	sseldi 3601	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → (𝐺‘(𝑘 + 1)) ∈ ℝ)
49		peano2rem 10348	. . . . . . . . . . . . . . 15 ⊢ ((𝐺‘(𝑘 + 1)) ∈ ℝ → ((𝐺‘(𝑘 + 1)) − 1) ∈ ℝ)
50	48, 49	syl 17	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → ((𝐺‘(𝑘 + 1)) − 1) ∈ ℝ)
51		simpll 790	. . . . . . . . . . . . . . . 16 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → 𝜑)
52		isercoll.i	. . . . . . . . . . . . . . . 16 ⊢ ((𝜑 ∧ 𝑘 ∈ ℕ) → (𝐺‘𝑘) < (𝐺‘(𝑘 + 1)))
53	51, 52	sylan 488	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → (𝐺‘𝑘) < (𝐺‘(𝑘 + 1)))
54	3, 36	sseldi 3601	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → (𝐺‘𝑘) ∈ ℤ)
55	3, 47	sseldi 3601	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → (𝐺‘(𝑘 + 1)) ∈ ℤ)
56		zltlem1 11430	. . . . . . . . . . . . . . . 16 ⊢ (((𝐺‘𝑘) ∈ ℤ ∧ (𝐺‘(𝑘 + 1)) ∈ ℤ) → ((𝐺‘𝑘) < (𝐺‘(𝑘 + 1)) ↔ (𝐺‘𝑘) ≤ ((𝐺‘(𝑘 + 1)) − 1)))
57	54, 55, 56	syl2anc 693	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → ((𝐺‘𝑘) < (𝐺‘(𝑘 + 1)) ↔ (𝐺‘𝑘) ≤ ((𝐺‘(𝑘 + 1)) − 1)))
58	53, 57	mpbid 222	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → (𝐺‘𝑘) ≤ ((𝐺‘(𝑘 + 1)) − 1))
59	37, 50, 39, 58	lesub1dd 10643	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → ((𝐺‘𝑘) − 𝑘) ≤ (((𝐺‘(𝑘 + 1)) − 1) − 𝑘))
60	48	recnd 10068	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → (𝐺‘(𝑘 + 1)) ∈ ℂ)
61		1cnd 10056	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → 1 ∈ ℂ)
62	39	recnd 10068	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → 𝑘 ∈ ℂ)
63	60, 61, 62	sub32d 10424	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → (((𝐺‘(𝑘 + 1)) − 1) − 𝑘) = (((𝐺‘(𝑘 + 1)) − 𝑘) − 1))
64	60, 62, 61	subsub4d 10423	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → (((𝐺‘(𝑘 + 1)) − 𝑘) − 1) = ((𝐺‘(𝑘 + 1)) − (𝑘 + 1)))
65	63, 64	eqtrd 2656	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → (((𝐺‘(𝑘 + 1)) − 1) − 𝑘) = ((𝐺‘(𝑘 + 1)) − (𝑘 + 1)))
66	59, 65	breqtrd 4679	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → ((𝐺‘𝑘) − 𝑘) ≤ ((𝐺‘(𝑘 + 1)) − (𝑘 + 1)))
67	45	adantl 482	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → (𝑘 + 1) ∈ ℕ)
68		fveq2 6191	. . . . . . . . . . . . . . 15 ⊢ (𝑛 = (𝑘 + 1) → (𝐺‘𝑛) = (𝐺‘(𝑘 + 1)))
69		id 22	. . . . . . . . . . . . . . 15 ⊢ (𝑛 = (𝑘 + 1) → 𝑛 = (𝑘 + 1))
70	68, 69	oveq12d 6668	. . . . . . . . . . . . . 14 ⊢ (𝑛 = (𝑘 + 1) → ((𝐺‘𝑛) − 𝑛) = ((𝐺‘(𝑘 + 1)) − (𝑘 + 1)))
71		ovex 6678	. . . . . . . . . . . . . 14 ⊢ ((𝐺‘(𝑘 + 1)) − (𝑘 + 1)) ∈ V
72	70, 32, 71	fvmpt 6282	. . . . . . . . . . . . 13 ⊢ ((𝑘 + 1) ∈ ℕ → ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘(𝑘 + 1)) = ((𝐺‘(𝑘 + 1)) − (𝑘 + 1)))
73	67, 72	syl 17	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘(𝑘 + 1)) = ((𝐺‘(𝑘 + 1)) − (𝑘 + 1)))
74	66, 35, 73	3brtr4d 4685	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘𝑘) ≤ ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘(𝑘 + 1)))
75	28, 74	syldan 487	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ (ℤ_≥‘𝑥)) → ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘𝑘) ≤ ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘(𝑘 + 1)))
76	44, 75	sylan2 491	. . . . . . . . 9 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ (𝑥...(𝑦 − 1))) → ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘𝑘) ≤ ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘(𝑘 + 1)))
77	25, 43, 76	monoord 12831	. . . . . . . 8 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘𝑥) ≤ ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘𝑦))
78		fveq2 6191	. . . . . . . . . . 11 ⊢ (𝑛 = 𝑥 → (𝐺‘𝑛) = (𝐺‘𝑥))
79		id 22	. . . . . . . . . . 11 ⊢ (𝑛 = 𝑥 → 𝑛 = 𝑥)
80	78, 79	oveq12d 6668	. . . . . . . . . 10 ⊢ (𝑛 = 𝑥 → ((𝐺‘𝑛) − 𝑛) = ((𝐺‘𝑥) − 𝑥))
81		ovex 6678	. . . . . . . . . 10 ⊢ ((𝐺‘𝑥) − 𝑥) ∈ V
82	80, 32, 81	fvmpt 6282	. . . . . . . . 9 ⊢ (𝑥 ∈ ℕ → ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘𝑥) = ((𝐺‘𝑥) − 𝑥))
83	8, 82	syl 17	. . . . . . . 8 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘𝑥) = ((𝐺‘𝑥) − 𝑥))
84		fveq2 6191	. . . . . . . . . . 11 ⊢ (𝑛 = 𝑦 → (𝐺‘𝑛) = (𝐺‘𝑦))
85		id 22	. . . . . . . . . . 11 ⊢ (𝑛 = 𝑦 → 𝑛 = 𝑦)
86	84, 85	oveq12d 6668	. . . . . . . . . 10 ⊢ (𝑛 = 𝑦 → ((𝐺‘𝑛) − 𝑛) = ((𝐺‘𝑦) − 𝑦))
87		ovex 6678	. . . . . . . . . 10 ⊢ ((𝐺‘𝑦) − 𝑦) ∈ V
88	86, 32, 87	fvmpt 6282	. . . . . . . . 9 ⊢ (𝑦 ∈ ℕ → ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘𝑦) = ((𝐺‘𝑦) − 𝑦))
89	11, 88	syl 17	. . . . . . . 8 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘𝑦) = ((𝐺‘𝑦) − 𝑦))
90	77, 83, 89	3brtr3d 4684	. . . . . . 7 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → ((𝐺‘𝑥) − 𝑥) ≤ ((𝐺‘𝑦) − 𝑦))
91	13, 15, 18, 20, 90	ltletrd 10197	. . . . . 6 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → ((𝐺‘𝑥) − 𝑦) < ((𝐺‘𝑦) − 𝑦))
92	10, 17, 12	ltsub1d 10636	. . . . . 6 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → ((𝐺‘𝑥) < (𝐺‘𝑦) ↔ ((𝐺‘𝑥) − 𝑦) < ((𝐺‘𝑦) − 𝑦)))
93	91, 92	mpbird 247	. . . . 5 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → (𝐺‘𝑥) < (𝐺‘𝑦))
94	93	ex 450	. . . 4 ⊢ ((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) → (𝑥 < 𝑦 → (𝐺‘𝑥) < (𝐺‘𝑦)))
95	94	ralrimivva 2971	. . 3 ⊢ (𝜑 → ∀𝑥 ∈ ℕ ∀𝑦 ∈ ℕ (𝑥 < 𝑦 → (𝐺‘𝑥) < (𝐺‘𝑦)))
96		ssralv 3666	. . . . 5 ⊢ (𝑆 ⊆ ℕ → (∀𝑦 ∈ ℕ (𝑥 < 𝑦 → (𝐺‘𝑥) < (𝐺‘𝑦)) → ∀𝑦 ∈ 𝑆 (𝑥 < 𝑦 → (𝐺‘𝑥) < (𝐺‘𝑦))))
97	96	ralimdv 2963	. . . 4 ⊢ (𝑆 ⊆ ℕ → (∀𝑥 ∈ ℕ ∀𝑦 ∈ ℕ (𝑥 < 𝑦 → (𝐺‘𝑥) < (𝐺‘𝑦)) → ∀𝑥 ∈ ℕ ∀𝑦 ∈ 𝑆 (𝑥 < 𝑦 → (𝐺‘𝑥) < (𝐺‘𝑦))))
98		ssralv 3666	. . . 4 ⊢ (𝑆 ⊆ ℕ → (∀𝑥 ∈ ℕ ∀𝑦 ∈ 𝑆 (𝑥 < 𝑦 → (𝐺‘𝑥) < (𝐺‘𝑦)) → ∀𝑥 ∈ 𝑆 ∀𝑦 ∈ 𝑆 (𝑥 < 𝑦 → (𝐺‘𝑥) < (𝐺‘𝑦))))
99	97, 98	syld 47	. . 3 ⊢ (𝑆 ⊆ ℕ → (∀𝑥 ∈ ℕ ∀𝑦 ∈ ℕ (𝑥 < 𝑦 → (𝐺‘𝑥) < (𝐺‘𝑦)) → ∀𝑥 ∈ 𝑆 ∀𝑦 ∈ 𝑆 (𝑥 < 𝑦 → (𝐺‘𝑥) < (𝐺‘𝑦))))
100	95, 99	mpan9 486	. 2 ⊢ ((𝜑 ∧ 𝑆 ⊆ ℕ) → ∀𝑥 ∈ 𝑆 ∀𝑦 ∈ 𝑆 (𝑥 < 𝑦 → (𝐺‘𝑥) < (𝐺‘𝑦)))
101		nnssre 11024	. . . . 5 ⊢ ℕ ⊆ ℝ
102		ltso 10118	. . . . 5 ⊢ < Or ℝ
103		soss 5053	. . . . 5 ⊢ (ℕ ⊆ ℝ → ( < Or ℝ → < Or ℕ))
104	101, 102, 103	mp2 9	. . . 4 ⊢ < Or ℕ
105	104	a1i 11	. . 3 ⊢ ((𝜑 ∧ 𝑆 ⊆ ℕ) → < Or ℕ)
106		soss 5053	. . . . 5 ⊢ (𝑍 ⊆ ℝ → ( < Or ℝ → < Or 𝑍))
107	5, 102, 106	mp2 9	. . . 4 ⊢ < Or 𝑍
108	107	a1i 11	. . 3 ⊢ ((𝜑 ∧ 𝑆 ⊆ ℕ) → < Or 𝑍)
109	6	adantr 481	. . 3 ⊢ ((𝜑 ∧ 𝑆 ⊆ ℕ) → 𝐺:ℕ⟶𝑍)
110		simpr 477	. . 3 ⊢ ((𝜑 ∧ 𝑆 ⊆ ℕ) → 𝑆 ⊆ ℕ)
111		soisores 6577	. . 3 ⊢ ((( < Or ℕ ∧ < Or 𝑍) ∧ (𝐺:ℕ⟶𝑍 ∧ 𝑆 ⊆ ℕ)) → ((𝐺 ↾ 𝑆) Isom < , < (𝑆, (𝐺 “ 𝑆)) ↔ ∀𝑥 ∈ 𝑆 ∀𝑦 ∈ 𝑆 (𝑥 < 𝑦 → (𝐺‘𝑥) < (𝐺‘𝑦))))
112	105, 108, 109, 110, 111	syl22anc 1327	. 2 ⊢ ((𝜑 ∧ 𝑆 ⊆ ℕ) → ((𝐺 ↾ 𝑆) Isom < , < (𝑆, (𝐺 “ 𝑆)) ↔ ∀𝑥 ∈ 𝑆 ∀𝑦 ∈ 𝑆 (𝑥 < 𝑦 → (𝐺‘𝑥) < (𝐺‘𝑦))))
113	100, 112	mpbird 247	1 ⊢ ((𝜑 ∧ 𝑆 ⊆ ℕ) → (𝐺 ↾ 𝑆) Isom < , < (𝑆, (𝐺 “ 𝑆)))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 196 ∧ wa 384 = wceq 1483 ∈ wcel 1990 ∀wral 2912 ⊆ wss 3574 class class class wbr 4653 ↦ cmpt 4729 Or wor 5034 ↾ cres 5116 “ cima 5117 ⟶wf 5884 ‘cfv 5888 Isom wiso 5889 (class class class)co 6650 ℝcr 9935 1c1 9937 + caddc 9939 < clt 10074 ≤ cle 10075 − cmin 10266 ℕcn 11020 ℤcz 11377 ℤ_≥cuz 11687 ...cfz 12326

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-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-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-isom 5897 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-er 7742 df-en 7956 df-dom 7957 df-sdom 7958 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

This theorem is referenced by: isercolllem2 14396 isercolllem3 14397 isercoll 14398

W3C validator