Theorem smndex1n0mnd 18136

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 11934	. . . . . . . 8 ⊢ (𝑁 ∈ ℕ → 𝑁 ∈ ℕ0)
3		fveq2 6659	. . . . . . . . . . . 12 ⊢ (𝑥 = 𝑁 → (( I ↾ ℕ0)‘𝑥) = (( I ↾ ℕ0)‘𝑁))
4	1, 2	ax-mp 5	. . . . . . . . . . . . 13 ⊢ 𝑁 ∈ ℕ0
5		fvresi 6927	. . . . . . . . . . . . 13 ⊢ (𝑁 ∈ ℕ0 → (( I ↾ ℕ0)‘𝑁) = 𝑁)
6	4, 5	ax-mp 5	. . . . . . . . . . . 12 ⊢ (( I ↾ ℕ0)‘𝑁) = 𝑁
7	3, 6	eqtrdi 2810	. . . . . . . . . . 11 ⊢ (𝑥 = 𝑁 → (( I ↾ ℕ0)‘𝑥) = 𝑁)
8		fveq2 6659	. . . . . . . . . . 11 ⊢ (𝑥 = 𝑁 → (𝐼‘𝑥) = (𝐼‘𝑁))
9	7, 8	eqeq12d 2775	. . . . . . . . . 10 ⊢ (𝑥 = 𝑁 → ((( I ↾ ℕ0)‘𝑥) = (𝐼‘𝑥) ↔ 𝑁 = (𝐼‘𝑁)))
10	9	notbid 322	. . . . . . . . 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 11701	. . . . . . . . . 10 ⊢ (𝑁 ∈ ℕ → 𝑁 ≠ 0)
13	12	neneqd 2957	. . . . . . . . 9 ⊢ (𝑁 ∈ ℕ → ¬ 𝑁 = 0)
14		smndex1ibas.i	. . . . . . . . . . 11 ⊢ 𝐼 = (𝑥 ∈ ℕ0 ↦ (𝑥 mod 𝑁))
15		oveq1 7158	. . . . . . . . . . . 12 ⊢ (𝑥 = 𝑁 → (𝑥 mod 𝑁) = (𝑁 mod 𝑁))
16		nnrp 12434	. . . . . . . . . . . . 13 ⊢ (𝑁 ∈ ℕ → 𝑁 ∈ ℝ+)
17		modid0 13307	. . . . . . . . . . . . 13 ⊢ (𝑁 ∈ ℝ+ → (𝑁 mod 𝑁) = 0)
18	16, 17	syl 17	. . . . . . . . . . . 12 ⊢ (𝑁 ∈ ℕ → (𝑁 mod 𝑁) = 0)
19	15, 18	sylan9eqr 2816	. . . . . . . . . . 11 ⊢ ((𝑁 ∈ ℕ ∧ 𝑥 = 𝑁) → (𝑥 mod 𝑁) = 0)
20		c0ex 10666	. . . . . . . . . . . 12 ⊢ 0 ∈ V
21	20	a1i 11	. . . . . . . . . . 11 ⊢ (𝑁 ∈ ℕ → 0 ∈ V)
22	14, 19, 2, 21	fvmptd2 6768	. . . . . . . . . 10 ⊢ (𝑁 ∈ ℕ → (𝐼‘𝑁) = 0)
23	22	eqeq2d 2770	. . . . . . . . 9 ⊢ (𝑁 ∈ ℕ → (𝑁 = (𝐼‘𝑁) ↔ 𝑁 = 0))
24	13, 23	mtbird 329	. . . . . . . 8 ⊢ (𝑁 ∈ ℕ → ¬ 𝑁 = (𝐼‘𝑁))
25	2, 11, 24	rspcedvd 3545	. . . . . . 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 3166	. . . . . 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 6460	. . . . . 6 ⊢ ( I ↾ ℕ0) Fn ℕ0
30		ovex 7184	. . . . . . 7 ⊢ (𝑥 mod 𝑁) ∈ V
31	30, 14	fnmpti 6475	. . . . . 6 ⊢ 𝐼 Fn ℕ0
32		eqfnfv 6794	. . . . . 6 ⊢ ((( I ↾ ℕ0) Fn ℕ0 ∧ 𝐼 Fn ℕ0) → (( I ↾ ℕ0) = 𝐼 ↔ ∀𝑥 ∈ ℕ0 (( I ↾ ℕ0)‘𝑥) = (𝐼‘𝑥)))
33	29, 31, 32	mp2an 692	. . . . 5 ⊢ (( I ↾ ℕ0) = 𝐼 ↔ ∀𝑥 ∈ ℕ0 (( I ↾ ℕ0)‘𝑥) = (𝐼‘𝑥))
34	28, 33	mtbir 327	. . . 4 ⊢ ¬ ( I ↾ ℕ0) = 𝐼
35	4	a1i 11	. . . . . . . 8 ⊢ (𝑛 ∈ (0..^𝑁) → 𝑁 ∈ ℕ0)
36		fveq2 6659	. . . . . . . . . . 11 ⊢ (𝑥 = 𝑁 → ((𝐺‘𝑛)‘𝑥) = ((𝐺‘𝑛)‘𝑁))
37	7, 36	eqeq12d 2775	. . . . . . . . . 10 ⊢ (𝑥 = 𝑁 → ((( I ↾ ℕ0)‘𝑥) = ((𝐺‘𝑛)‘𝑥) ↔ 𝑁 = ((𝐺‘𝑛)‘𝑁)))
38	37	notbid 322	. . . . . . . . 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 13093	. . . . . . . . . . 11 ⊢ ¬ 𝑁 ∈ (0..^𝑁)
41		eleq1 2840	. . . . . . . . . . . 12 ⊢ (𝑛 = 𝑁 → (𝑛 ∈ (0..^𝑁) ↔ 𝑁 ∈ (0..^𝑁)))
42	41	eqcoms 2767	. . . . . . . . . . 11 ⊢ (𝑁 = 𝑛 → (𝑛 ∈ (0..^𝑁) ↔ 𝑁 ∈ (0..^𝑁)))
43	40, 42	mtbiri 331	. . . . . . . . . 10 ⊢ (𝑁 = 𝑛 → ¬ 𝑛 ∈ (0..^𝑁))
44	43	con2i 141	. . . . . . . . 9 ⊢ (𝑛 ∈ (0..^𝑁) → ¬ 𝑁 = 𝑛)
45		nn0ex 11933	. . . . . . . . . . . . 13 ⊢ ℕ0 ∈ V
46	45	mptex 6978	. . . . . . . . . . . 12 ⊢ (𝑥 ∈ ℕ0 ↦ 𝑛) ∈ V
47		smndex1ibas.g	. . . . . . . . . . . . 13 ⊢ 𝐺 = (𝑛 ∈ (0..^𝑁) ↦ (𝑥 ∈ ℕ0 ↦ 𝑛))
48	47	fvmpt2 6771	. . . . . . . . . . . 12 ⊢ ((𝑛 ∈ (0..^𝑁) ∧ (𝑥 ∈ ℕ0 ↦ 𝑛) ∈ V) → (𝐺‘𝑛) = (𝑥 ∈ ℕ0 ↦ 𝑛))
49	46, 48	mpan2 691	. . . . . . . . . . 11 ⊢ (𝑛 ∈ (0..^𝑁) → (𝐺‘𝑛) = (𝑥 ∈ ℕ0 ↦ 𝑛))
50		eqidd 2760	. . . . . . . . . . 11 ⊢ ((𝑛 ∈ (0..^𝑁) ∧ 𝑥 = 𝑁) → 𝑛 = 𝑛)
51		id 22	. . . . . . . . . . 11 ⊢ (𝑛 ∈ (0..^𝑁) → 𝑛 ∈ (0..^𝑁))
52	49, 50, 35, 51	fvmptd 6767	. . . . . . . . . 10 ⊢ (𝑛 ∈ (0..^𝑁) → ((𝐺‘𝑛)‘𝑁) = 𝑛)
53	52	eqeq2d 2770	. . . . . . . . 9 ⊢ (𝑛 ∈ (0..^𝑁) → (𝑁 = ((𝐺‘𝑛)‘𝑁) ↔ 𝑁 = 𝑛))
54	44, 53	mtbird 329	. . . . . . . 8 ⊢ (𝑛 ∈ (0..^𝑁) → ¬ 𝑁 = ((𝐺‘𝑛)‘𝑁))
55	35, 39, 54	rspcedvd 3545	. . . . . . 7 ⊢ (𝑛 ∈ (0..^𝑁) → ∃𝑥 ∈ ℕ0 ¬ (( I ↾ ℕ0)‘𝑥) = ((𝐺‘𝑛)‘𝑥))
56		rexnal 3166	. . . . . . 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 3414	. . . . . . . . 9 ⊢ 𝑛 ∈ V
59		eqid 2759	. . . . . . . . 9 ⊢ (𝑥 ∈ ℕ0 ↦ 𝑛) = (𝑥 ∈ ℕ0 ↦ 𝑛)
60	58, 59	fnmpti 6475	. . . . . . . 8 ⊢ (𝑥 ∈ ℕ0 ↦ 𝑛) Fn ℕ0
61	49	fneq1d 6428	. . . . . . . 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 6794	. . . . . . 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 591	. . . . . 6 ⊢ (𝑛 ∈ (0..^𝑁) → (( I ↾ ℕ0) = (𝐺‘𝑛) ↔ ∀𝑥 ∈ ℕ0 (( I ↾ ℕ0)‘𝑥) = ((𝐺‘𝑛)‘𝑥)))
65	57, 64	mtbird 329	. . . . 5 ⊢ (𝑛 ∈ (0..^𝑁) → ¬ ( I ↾ ℕ0) = (𝐺‘𝑛))
66	65	nrex 3194	. . . 4 ⊢ ¬ ∃𝑛 ∈ (0..^𝑁)( I ↾ ℕ0) = (𝐺‘𝑛)
67	34, 66	pm3.2ni 879	. . 3 ⊢ ¬ (( I ↾ ℕ0) = 𝐼 ∨ ∃𝑛 ∈ (0..^𝑁)( I ↾ ℕ0) = (𝐺‘𝑛))
68		smndex1ibas.m	. . . . . . . 8 ⊢ 𝑀 = (EndoFMnd‘ℕ0)
69	68	efmndid 18112	. . . . . . 7 ⊢ (ℕ0 ∈ V → ( I ↾ ℕ0) = (0g‘𝑀))
70	45, 69	ax-mp 5	. . . . . 6 ⊢ ( I ↾ ℕ0) = (0g‘𝑀)
71	70	eqcomi 2768	. . . . 5 ⊢ (0g‘𝑀) = ( I ↾ ℕ0)
72		smndex1mgm.b	. . . . 5 ⊢ 𝐵 = ({𝐼} ∪ ∪ 𝑛 ∈ (0..^𝑁){(𝐺‘𝑛)})
73	71, 72	eleq12i 2845	. . . 4 ⊢ ((0g‘𝑀) ∈ 𝐵 ↔ ( I ↾ ℕ0) ∈ ({𝐼} ∪ ∪ 𝑛 ∈ (0..^𝑁){(𝐺‘𝑛)}))
74		elun 4055	. . . . 5 ⊢ (( I ↾ ℕ0) ∈ ({𝐼} ∪ ∪ 𝑛 ∈ (0..^𝑁){(𝐺‘𝑛)}) ↔ (( I ↾ ℕ0) ∈ {𝐼} ∨ ( I ↾ ℕ0) ∈ ∪ 𝑛 ∈ (0..^𝑁){(𝐺‘𝑛)}))
75		resiexg 7625	. . . . . . . 8 ⊢ (ℕ0 ∈ V → ( I ↾ ℕ0) ∈ V)
76	45, 75	ax-mp 5	. . . . . . 7 ⊢ ( I ↾ ℕ0) ∈ V
77	76	elsn 4538	. . . . . 6 ⊢ (( I ↾ ℕ0) ∈ {𝐼} ↔ ( I ↾ ℕ0) = 𝐼)
78		eliun 4888	. . . . . . 7 ⊢ (( I ↾ ℕ0) ∈ ∪ 𝑛 ∈ (0..^𝑁){(𝐺‘𝑛)} ↔ ∃𝑛 ∈ (0..^𝑁)( I ↾ ℕ0) ∈ {(𝐺‘𝑛)})
79	76	elsn 4538	. . . . . . . 8 ⊢ (( I ↾ ℕ0) ∈ {(𝐺‘𝑛)} ↔ ( I ↾ ℕ0) = (𝐺‘𝑛))
80	79	rexbii 3176	. . . . . . 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 913	. . . . 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 327	. 2 ⊢ ¬ (0g‘𝑀) ∈ 𝐵
86	85	nelir 3059	1 ⊢ (0g‘𝑀) ∉ 𝐵

Syntax hints:  ¬ wn 3   ↔ wb 209   ∧ wa 400   ∨ wo 845   = wceq 1539   ∈ wcel 2112   ∉ wnel 3056  ∀wral 3071  ∃wrex 3072  Vcvv 3410   ∪ cun 3857  {csn 4523  ∪ ciun 4884   ↦ cmpt 5113   I cid 5430   ↾ cres 5527   Fn wfn 6331  ‘cfv 6336  (class class class)co 7151  0cc0 10568  ℕcn 11667  ℕ₀cn0 11927  ℝ⁺crp 12423  ..^cfzo 13075   mod cmo 13279   ↾_s cress 16535  0_gc0g 16764  EndoFMndcefmnd 18092

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1798  ax-4 1812  ax-5 1912  ax-6 1971  ax-7 2016  ax-8 2114  ax-9 2122  ax-10 2143  ax-11 2159  ax-12 2176  ax-ext 2730  ax-rep 5157  ax-sep 5170  ax-nul 5177  ax-pow 5235  ax-pr 5299  ax-un 7460  ax-cnex 10624  ax-resscn 10625  ax-1cn 10626  ax-icn 10627  ax-addcl 10628  ax-addrcl 10629  ax-mulcl 10630  ax-mulrcl 10631  ax-mulcom 10632  ax-addass 10633  ax-mulass 10634  ax-distr 10635  ax-i2m1 10636  ax-1ne0 10637  ax-1rid 10638  ax-rnegex 10639  ax-rrecex 10640  ax-cnre 10641  ax-pre-lttri 10642  ax-pre-lttrn 10643  ax-pre-ltadd 10644  ax-pre-mulgt0 10645  ax-pre-sup 10646

This theorem depends on definitions:  df-bi 210  df-an 401  df-or 846  df-3or 1086  df-3an 1087  df-tru 1542  df-fal 1552  df-ex 1783  df-nf 1787  df-sb 2071  df-mo 2558  df-eu 2589  df-clab 2737  df-cleq 2751  df-clel 2831  df-nfc 2902  df-ne 2953  df-nel 3057  df-ral 3076  df-rex 3077  df-reu 3078  df-rmo 3079  df-rab 3080  df-v 3412  df-sbc 3698  df-csb 3807  df-dif 3862  df-un 3864  df-in 3866  df-ss 3876  df-pss 3878  df-nul 4227  df-if 4422  df-pw 4497  df-sn 4524  df-pr 4526  df-tp 4528  df-op 4530  df-uni 4800  df-int 4840  df-iun 4886  df-br 5034  df-opab 5096  df-mpt 5114  df-tr 5140  df-id 5431  df-eprel 5436  df-po 5444  df-so 5445  df-fr 5484  df-we 5486  df-xp 5531  df-rel 5532  df-cnv 5533  df-co 5534  df-dm 5535  df-rn 5536  df-res 5537  df-ima 5538  df-pred 6127  df-ord 6173  df-on 6174  df-lim 6175  df-suc 6176  df-iota 6295  df-fun 6338  df-fn 6339  df-f 6340  df-f1 6341  df-fo 6342  df-f1o 6343  df-fv 6344  df-riota 7109  df-ov 7154  df-oprab 7155  df-mpo 7156  df-om 7581  df-1st 7694  df-2nd 7695  df-wrecs 7958  df-recs 8019  df-rdg 8057  df-1o 8113  df-oadd 8117  df-er 8300  df-map 8419  df-en 8529  df-dom 8530  df-sdom 8531  df-fin 8532  df-sup 8932  df-inf 8933  df-pnf 10708  df-mnf 10709  df-xr 10710  df-ltxr 10711  df-le 10712  df-sub 10903  df-neg 10904  df-div 11329  df-nn 11668  df-2 11730  df-3 11731  df-4 11732  df-5 11733  df-6 11734  df-7 11735  df-8 11736  df-9 11737  df-n0 11928  df-z 12014  df-uz 12276  df-rp 12424  df-fz 12933  df-fzo 13076  df-fl 13204  df-mod 13280  df-struct 16536  df-ndx 16537  df-slot 16538  df-base 16540  df-plusg 16629  df-tset 16635  df-0g 16766  df-efmnd 18093

This theorem is referenced by:  nsmndex1  18137