Theorem smndex1n0mnd 18974

Description: The identity of the monoid 𝑀 of endofunctions on set ℕ₀ is not contained in the base set of the constructed monoid 𝑆. (Contributed by AV, 17-Feb-2024.)

Hypotheses

Ref	Expression
smndex1ibas.m	⊢ 𝑀 = (EndoFMnd‘ℕ0)
smndex1ibas.n	⊢ 𝑁 ∈ ℕ
smndex1ibas.i	⊢ 𝐼 = (𝑥 ∈ ℕ0 ↦ (𝑥 mod 𝑁))
smndex1ibas.g	⊢ 𝐺 = (𝑛 ∈ (0..^𝑁) ↦ (𝑥 ∈ ℕ0 ↦ 𝑛))
smndex1mgm.b	⊢ 𝐵 = ({𝐼} ∪ ∪ 𝑛 ∈ (0..^𝑁){(𝐺‘𝑛)})
smndex1mgm.s	⊢ 𝑆 = (𝑀 ↾s 𝐵)

Assertion

Ref	Expression
smndex1n0mnd	⊢ (0g‘𝑀) ∉ 𝐵

Distinct variable groups:   𝑥,𝑁,𝑛   𝑥,𝑀   𝑛,𝐺   𝑛,𝑀   𝑥,𝐺   𝑛,𝐼,𝑥   𝑥,𝑆

Allowed substitution hints:   𝐵(𝑥,𝑛)   𝑆(𝑛)

Proof of Theorem smndex1n0mnd

Step	Hyp	Ref	Expression
1		smndex1ibas.n	. . . . . . 7 ⊢ 𝑁 ∈ ℕ
2		nnnn0 12511	. . . . . . . 8 ⊢ (𝑁 ∈ ℕ → 𝑁 ∈ ℕ0)
3		fveq2 6882	. . . . . . . . . . . 12 ⊢ (𝑥 = 𝑁 → (( I ↾ ℕ0)‘𝑥) = (( I ↾ ℕ0)‘𝑁))
4	1, 2	ax-mp 5	. . . . . . . . . . . . 13 ⊢ 𝑁 ∈ ℕ0
5		fvresi 7172	. . . . . . . . . . . . 13 ⊢ (𝑁 ∈ ℕ0 → (( I ↾ ℕ0)‘𝑁) = 𝑁)
6	4, 5	ax-mp 5	. . . . . . . . . . . 12 ⊢ (( I ↾ ℕ0)‘𝑁) = 𝑁
7	3, 6	eqtrdi 2820	. . . . . . . . . . 11 ⊢ (𝑥 = 𝑁 → (( I ↾ ℕ0)‘𝑥) = 𝑁)
8		fveq2 6882	. . . . . . . . . . 11 ⊢ (𝑥 = 𝑁 → (𝐼‘𝑥) = (𝐼‘𝑁))
9	7, 8	eqeq12d 2785	. . . . . . . . . 10 ⊢ (𝑥 = 𝑁 → ((( I ↾ ℕ0)‘𝑥) = (𝐼‘𝑥) ↔ 𝑁 = (𝐼‘𝑁)))
10	9	notbid 321	. . . . . . . . 9 ⊢ (𝑥 = 𝑁 → (¬ (( I ↾ ℕ0)‘𝑥) = (𝐼‘𝑥) ↔ ¬ 𝑁 = (𝐼‘𝑁)))
11	10	adantl 486	. . . . . . . 8 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 = 𝑁) → (¬ (( I ↾ ℕ0)‘𝑥) = (𝐼‘𝑥) ↔ ¬ 𝑁 = (𝐼‘𝑁)))
12		nnne0 12270	. . . . . . . . . 10 ⊢ (𝑁 ∈ ℕ → 𝑁 ≠ 0)
13	12	neneqd 2969	. . . . . . . . 9 ⊢ (𝑁 ∈ ℕ → ¬ 𝑁 = 0)
14		smndex1ibas.i	. . . . . . . . . . 11 ⊢ 𝐼 = (𝑥 ∈ ℕ0 ↦ (𝑥 mod 𝑁))
15		oveq1 7418	. . . . . . . . . . . 12 ⊢ (𝑥 = 𝑁 → (𝑥 mod 𝑁) = (𝑁 mod 𝑁))
16		nnrp 13028	. . . . . . . . . . . . 13 ⊢ (𝑁 ∈ ℕ → 𝑁 ∈ ℝ+)
17		modid0 13930	. . . . . . . . . . . . 13 ⊢ (𝑁 ∈ ℝ+ → (𝑁 mod 𝑁) = 0)
18	16, 17	syl 18	. . . . . . . . . . . 12 ⊢ (𝑁 ∈ ℕ → (𝑁 mod 𝑁) = 0)
19	15, 18	sylan9eqr 2826	. . . . . . . . . . 11 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 = 𝑁) → (𝑥 mod 𝑁) = 0)
20		c0ex 11200	. . . . . . . . . . . 12 ⊢ 0 ∈ V
21	20	a1i 11	. . . . . . . . . . 11 ⊢ (𝑁 ∈ ℕ → 0 ∈ V)
22	14, 19, 2, 21	fvmptd2 6999	. . . . . . . . . 10 ⊢ (𝑁 ∈ ℕ → (𝐼‘𝑁) = 0)
23	22	eqeq2d 2780	. . . . . . . . 9 ⊢ (𝑁 ∈ ℕ → (𝑁 = (𝐼‘𝑁) ↔ 𝑁 = 0))
24	13, 23	mtbird 328	. . . . . . . 8 ⊢ (𝑁 ∈ ℕ → ¬ 𝑁 = (𝐼‘𝑁))
25	2, 11, 24	rspcedvd 3592	. . . . . . 7 ⊢ (𝑁 ∈ ℕ → ∃𝑥 ∈ ℕ0 ¬ (( I ↾ ℕ0)‘𝑥) = (𝐼‘𝑥))
26	1, 25	ax-mp 5	. . . . . 6 ⊢ ∃𝑥 ∈ ℕ0 ¬ (( I ↾ ℕ0)‘𝑥) = (𝐼‘𝑥)
27		rexnal 3123	. . . . . 6 ⊢ (∃𝑥 ∈ ℕ0 ¬ (( I ↾ ℕ0)‘𝑥) = (𝐼‘𝑥) ↔ ¬ ∀𝑥 ∈ ℕ0 (( I ↾ ℕ0)‘𝑥) = (𝐼‘𝑥))
28	26, 27	mpbi 233	. . . . 5 ⊢ ¬ ∀𝑥 ∈ ℕ0 (( I ↾ ℕ0)‘𝑥) = (𝐼‘𝑥)
29		fnresi 6665	. . . . . 6 ⊢ ( I ↾ ℕ0) Fn ℕ0
30		ovex 7444	. . . . . . 7 ⊢ (𝑥 mod 𝑁) ∈ V
31	30, 14	fnmpti 6679	. . . . . 6 ⊢ 𝐼 Fn ℕ0
32		eqfnfv 7026	. . . . . 6 ⊢ ((( I ↾ ℕ0) Fn ℕ0 ∧ 𝐼 Fn ℕ0) → (( I ↾ ℕ0) = 𝐼 ↔ ∀𝑥 ∈ ℕ0 (( I ↾ ℕ0)‘𝑥) = (𝐼‘𝑥)))
33	29, 31, 32	mp2an 704	. . . . 5 ⊢ (( I ↾ ℕ0) = 𝐼 ↔ ∀𝑥 ∈ ℕ0 (( I ↾ ℕ0)‘𝑥) = (𝐼‘𝑥))
34	28, 33	mtbir 326	. . . 4 ⊢ ¬ ( I ↾ ℕ0) = 𝐼
35	4	a1i 11	. . . . . . . 8 ⊢ (𝑛 ∈ (0..^𝑁) → 𝑁 ∈ ℕ0)
36		fveq2 6882	. . . . . . . . . . 11 ⊢ (𝑥 = 𝑁 → ((𝐺‘𝑛)‘𝑥) = ((𝐺‘𝑛)‘𝑁))
37	7, 36	eqeq12d 2785	. . . . . . . . . 10 ⊢ (𝑥 = 𝑁 → ((( I ↾ ℕ0)‘𝑥) = ((𝐺‘𝑛)‘𝑥) ↔ 𝑁 = ((𝐺‘𝑛)‘𝑁)))
38	37	notbid 321	. . . . . . . . 9 ⊢ (𝑥 = 𝑁 → (¬ (( I ↾ ℕ0)‘𝑥) = ((𝐺‘𝑛)‘𝑥) ↔ ¬ 𝑁 = ((𝐺‘𝑛)‘𝑁)))
39	38	adantl 486	. . . . . . . 8 ⊢ ((𝑛 ∈ (0..^𝑁) ∧ 𝑥 = 𝑁) → (¬ (( I ↾ ℕ0)‘𝑥) = ((𝐺‘𝑛)‘𝑥) ↔ ¬ 𝑁 = ((𝐺‘𝑛)‘𝑁)))
40		fzonel 13702	. . . . . . . . . . 11 ⊢ ¬ 𝑁 ∈ (0..^𝑁)
41		eleq1 2857	. . . . . . . . . . . 12 ⊢ (𝑛 = 𝑁 → (𝑛 ∈ (0..^𝑁) ↔ 𝑁 ∈ (0..^𝑁)))
42	41	eqcoms 2777	. . . . . . . . . . 11 ⊢ (𝑁 = 𝑛 → (𝑛 ∈ (0..^𝑁) ↔ 𝑁 ∈ (0..^𝑁)))
43	40, 42	mtbiri 330	. . . . . . . . . 10 ⊢ (𝑁 = 𝑛 → ¬ 𝑛 ∈ (0..^𝑁))
44	43	con2i 140	. . . . . . . . 9 ⊢ (𝑛 ∈ (0..^𝑁) → ¬ 𝑁 = 𝑛)
45		nn0ex 12510	. . . . . . . . . . . . 13 ⊢ ℕ0 ∈ V
46	45	mptex 7222	. . . . . . . . . . . 12 ⊢ (𝑥 ∈ ℕ0 ↦ 𝑛) ∈ V
47		smndex1ibas.g	. . . . . . . . . . . . 13 ⊢ 𝐺 = (𝑛 ∈ (0..^𝑁) ↦ (𝑥 ∈ ℕ0 ↦ 𝑛))
48	47	fvmpt2 7002	. . . . . . . . . . . 12 ⊢ ((𝑛 ∈ (0..^𝑁) ∧ (𝑥 ∈ ℕ0 ↦ 𝑛) ∈ V) → (𝐺‘𝑛) = (𝑥 ∈ ℕ0 ↦ 𝑛))
49	46, 48	mpan2 703	. . . . . . . . . . 11 ⊢ (𝑛 ∈ (0..^𝑁) → (𝐺‘𝑛) = (𝑥 ∈ ℕ0 ↦ 𝑛))
50		eqidd 2770	. . . . . . . . . . 11 ⊢ ((𝑛 ∈ (0..^𝑁) ∧ 𝑥 = 𝑁) → 𝑛 = 𝑛)
51		id 23	. . . . . . . . . . 11 ⊢ (𝑛 ∈ (0..^𝑁) → 𝑛 ∈ (0..^𝑁))
52	49, 50, 35, 51	fvmptd 6998	. . . . . . . . . 10 ⊢ (𝑛 ∈ (0..^𝑁) → ((𝐺‘𝑛)‘𝑁) = 𝑛)
53	52	eqeq2d 2780	. . . . . . . . 9 ⊢ (𝑛 ∈ (0..^𝑁) → (𝑁 = ((𝐺‘𝑛)‘𝑁) ↔ 𝑁 = 𝑛))
54	44, 53	mtbird 328	. . . . . . . 8 ⊢ (𝑛 ∈ (0..^𝑁) → ¬ 𝑁 = ((𝐺‘𝑛)‘𝑁))
55	35, 39, 54	rspcedvd 3592	. . . . . . 7 ⊢ (𝑛 ∈ (0..^𝑁) → ∃𝑥 ∈ ℕ0 ¬ (( I ↾ ℕ0)‘𝑥) = ((𝐺‘𝑛)‘𝑥))
56		rexnal 3123	. . . . . . 7 ⊢ (∃𝑥 ∈ ℕ0 ¬ (( I ↾ ℕ0)‘𝑥) = ((𝐺‘𝑛)‘𝑥) ↔ ¬ ∀𝑥 ∈ ℕ0 (( I ↾ ℕ0)‘𝑥) = ((𝐺‘𝑛)‘𝑥))
57	55, 56	sylib 221	. . . . . 6 ⊢ (𝑛 ∈ (0..^𝑁) → ¬ ∀𝑥 ∈ ℕ0 (( I ↾ ℕ0)‘𝑥) = ((𝐺‘𝑛)‘𝑥))
58		vex 3467	. . . . . . . . 9 ⊢ 𝑛 ∈ V
59		eqid 2769	. . . . . . . . 9 ⊢ (𝑥 ∈ ℕ0 ↦ 𝑛) = (𝑥 ∈ ℕ0 ↦ 𝑛)
60	58, 59	fnmpti 6679	. . . . . . . 8 ⊢ (𝑥 ∈ ℕ0 ↦ 𝑛) Fn ℕ0
61	49	fneq1d 6629	. . . . . . . 8 ⊢ (𝑛 ∈ (0..^𝑁) → ((𝐺‘𝑛) Fn ℕ0 ↔ (𝑥 ∈ ℕ0 ↦ 𝑛) Fn ℕ0))
62	60, 61	mpbiri 261	. . . . . . 7 ⊢ (𝑛 ∈ (0..^𝑁) → (𝐺‘𝑛) Fn ℕ0)
63		eqfnfv 7026	. . . . . . 7 ⊢ ((( I ↾ ℕ0) Fn ℕ0 ∧ (𝐺‘𝑛) Fn ℕ0) → (( I ↾ ℕ0) = (𝐺‘𝑛) ↔ ∀𝑥 ∈ ℕ0 (( I ↾ ℕ0)‘𝑥) = ((𝐺‘𝑛)‘𝑥)))
64	29, 62, 63	sylancr 598	. . . . . 6 ⊢ (𝑛 ∈ (0..^𝑁) → (( I ↾ ℕ0) = (𝐺‘𝑛) ↔ ∀𝑥 ∈ ℕ0 (( I ↾ ℕ0)‘𝑥) = ((𝐺‘𝑛)‘𝑥)))
65	57, 64	mtbird 328	. . . . 5 ⊢ (𝑛 ∈ (0..^𝑁) → ¬ ( I ↾ ℕ0) = (𝐺‘𝑛))
66	65	nrex 3099	. . . 4 ⊢ ¬ ∃𝑛 ∈ (0..^𝑁)( I ↾ ℕ0) = (𝐺‘𝑛)
67	34, 66	pm3.2ni 893	. . 3 ⊢ ¬ (( I ↾ ℕ0) = 𝐼 ∨ ∃𝑛 ∈ (0..^𝑁)( I ↾ ℕ0) = (𝐺‘𝑛))
68		smndex1ibas.m	. . . . . . . 8 ⊢ 𝑀 = (EndoFMnd‘ℕ0)
69	68	efmndid 18947	. . . . . . 7 ⊢ (ℕ0 ∈ V → ( I ↾ ℕ0) = (0g‘𝑀))
70	45, 69	ax-mp 5	. . . . . 6 ⊢ ( I ↾ ℕ0) = (0g‘𝑀)
71	70	eqcomi 2778	. . . . 5 ⊢ (0g‘𝑀) = ( I ↾ ℕ0)
72		smndex1mgm.b	. . . . 5 ⊢ 𝐵 = ({𝐼} ∪ ∪ 𝑛 ∈ (0..^𝑁){(𝐺‘𝑛)})
73	71, 72	eleq12i 2862	. . . 4 ⊢ ((0g‘𝑀) ∈ 𝐵 ↔ ( I ↾ ℕ0) ∈ ({𝐼} ∪ ∪ 𝑛 ∈ (0..^𝑁){(𝐺‘𝑛)}))
74		elun 4115	. . . . 5 ⊢ (( I ↾ ℕ0) ∈ ({𝐼} ∪ ∪ 𝑛 ∈ (0..^𝑁){(𝐺‘𝑛)}) ↔ (( I ↾ ℕ0) ∈ {𝐼} ∨ ( I ↾ ℕ0) ∈ ∪ 𝑛 ∈ (0..^𝑁){(𝐺‘𝑛)}))
75		resiexg 7909	. . . . . . . 8 ⊢ (ℕ0 ∈ V → ( I ↾ ℕ0) ∈ V)
76	45, 75	ax-mp 5	. . . . . . 7 ⊢ ( I ↾ ℕ0) ∈ V
77	76	elsn 4609	. . . . . 6 ⊢ (( I ↾ ℕ0) ∈ {𝐼} ↔ ( I ↾ ℕ0) = 𝐼)
78		eliun 4964	. . . . . . 7 ⊢ (( I ↾ ℕ0) ∈ ∪ 𝑛 ∈ (0..^𝑁){(𝐺‘𝑛)} ↔ ∃𝑛 ∈ (0..^𝑁)( I ↾ ℕ0) ∈ {(𝐺‘𝑛)})
79	76	elsn 4609	. . . . . . . 8 ⊢ (( I ↾ ℕ0) ∈ {(𝐺‘𝑛)} ↔ ( I ↾ ℕ0) = (𝐺‘𝑛))
80	79	rexbii 3118	. . . . . . 7 ⊢ (∃𝑛 ∈ (0..^𝑁)( I ↾ ℕ0) ∈ {(𝐺‘𝑛)} ↔ ∃𝑛 ∈ (0..^𝑁)( I ↾ ℕ0) = (𝐺‘𝑛))
81	78, 80	bitri 278	. . . . . 6 ⊢ (( I ↾ ℕ0) ∈ ∪ 𝑛 ∈ (0..^𝑁){(𝐺‘𝑛)} ↔ ∃𝑛 ∈ (0..^𝑁)( I ↾ ℕ0) = (𝐺‘𝑛))
82	77, 81	orbi12i 927	. . . . 5 ⊢ ((( I ↾ ℕ0) ∈ {𝐼} ∨ ( I ↾ ℕ0) ∈ ∪ 𝑛 ∈ (0..^𝑁){(𝐺‘𝑛)}) ↔ (( I ↾ ℕ0) = 𝐼 ∨ ∃𝑛 ∈ (0..^𝑁)( I ↾ ℕ0) = (𝐺‘𝑛)))
83	74, 82	bitri 278	. . . 4 ⊢ (( I ↾ ℕ0) ∈ ({𝐼} ∪ ∪ 𝑛 ∈ (0..^𝑁){(𝐺‘𝑛)}) ↔ (( I ↾ ℕ0) = 𝐼 ∨ ∃𝑛 ∈ (0..^𝑁)( I ↾ ℕ0) = (𝐺‘𝑛)))
84	73, 83	bitri 278	. . 3 ⊢ ((0g‘𝑀) ∈ 𝐵 ↔ (( I ↾ ℕ0) = 𝐼 ∨ ∃𝑛 ∈ (0..^𝑁)( I ↾ ℕ0) = (𝐺‘𝑛)))
85	67, 84	mtbir 326	. 2 ⊢ ¬ (0g‘𝑀) ∈ 𝐵
86	85	nelir 3073	1 ⊢ (0g‘𝑀) ∉ 𝐵

Syntax hints:  ¬ wn 3   ↔ wb 209   ∧ wa 400   ∨ wo 860   = wceq 1567   ∈ wcel 2149   ∉ wnel 3070  ∀wral 3085  ∃wrex 3095  Vcvv 3463   ∪ cun 3911  {csn 4594  ∪ ciun 4960   ↦ cmpt 5196   I cid 5556   ↾ cres 5664   Fn wfn 6532  ‘cfv 6537  (class class class)co 7411  0cc0 11100  ℕcn 12233  ℕ₀cn0 12504  ℝ⁺crp 13016  ..^cfzo 13682   mod cmo 13902   ↾_s cress 17290  0_gc0g 17492  EndoFMndcefmnd 18927

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1822  ax-4 1836  ax-5 1937  ax-6 1994  ax-7 2035  ax-8 2151  ax-9 2159  ax-10 2182  ax-11 2198  ax-12 2219  ax-ext 2741  ax-rep 5242  ax-sep 5261  ax-nul 5271  ax-pow 5337  ax-pr 5405  ax-un 7733  ax-cnex 11156  ax-resscn 11157  ax-1cn 11158  ax-icn 11159  ax-addcl 11160  ax-addrcl 11161  ax-mulcl 11162  ax-mulrcl 11163  ax-mulcom 11164  ax-addass 11165  ax-mulass 11166  ax-distr 11167  ax-i2m1 11168  ax-1ne0 11169  ax-1rid 11170  ax-rnegex 11171  ax-rrecex 11172  ax-cnre 11173  ax-pre-lttri 11174  ax-pre-lttrn 11175  ax-pre-ltadd 11176  ax-pre-mulgt0 11177  ax-pre-sup 11178

This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3or 1102  df-3an 1103  df-tru 1570  df-fal 1580  df-ex 1807  df-nf 1811  df-sb 2098  df-mo 2573  df-eu 2603  df-clab 2748  df-cleq 2761  df-clel 2844  df-nfc 2918  df-ne 2965  df-nel 3071  df-ral 3086  df-rex 3096  df-rmo 3376  df-reu 3377  df-rab 3424  df-v 3465  df-sbc 3754  df-csb 3862  df-dif 3916  df-un 3918  df-in 3920  df-ss 3930  df-pss 3933  df-nul 4295  df-if 4493  df-pw 4569  df-sn 4595  df-pr 4597  df-tp 4599  df-op 4601  df-uni 4877  df-iun 4962  df-br 5114  df-opab 5178  df-mpt 5197  df-tr 5223  df-id 5557  df-eprel 5562  df-po 5570  df-so 5571  df-fr 5615  df-we 5617  df-xp 5668  df-rel 5669  df-cnv 5670  df-co 5671  df-dm 5672  df-rn 5673  df-res 5674  df-ima 5675  df-pred 6303  df-ord 6364  df-on 6365  df-lim 6366  df-suc 6367  df-iota 6493  df-fun 6539  df-fn 6540  df-f 6541  df-f1 6542  df-fo 6543  df-f1o 6544  df-fv 6545  df-riota 7368  df-ov 7414  df-oprab 7415  df-mpo 7416  df-om 7863  df-1st 7986  df-2nd 7987  df-frecs 8278  df-wrecs 8309  df-recs 8358  df-rdg 8397  df-1o 8453  df-er 8694  df-map 8826  df-en 8944  df-dom 8945  df-sdom 8946  df-fin 8947  df-sup 9402  df-inf 9403  df-pnf 11245  df-mnf 11246  df-xr 11247  df-ltxr 11248  df-le 11249  df-sub 11443  df-neg 11444  df-div 11872  df-nn 12234  df-2 12303  df-3 12304  df-4 12305  df-5 12306  df-6 12307  df-7 12308  df-8 12309  df-9 12310  df-n0 12505  df-z 12592  df-uz 12863  df-rp 13017  df-fz 13536  df-fzo 13683  df-fl 13825  df-mod 13903  df-struct 17207  df-slot 17242  df-ndx 17254  df-base 17270  df-plusg 17323  df-tset 17329  df-0g 17494  df-efmnd 18928

This theorem is referenced by:  nsmndex1  18975