Theorem relexpss1d 40043

Description: The relational power of a subset is a subset. (Contributed by RP, 17-Jun-2020.)

Hypotheses

Ref	Expression
relexpss1d.a	⊢ (𝜑 → 𝐴 ⊆ 𝐵)
relexpss1d.b	⊢ (𝜑 → 𝐵 ∈ V)
relexpss1d.n	⊢ (𝜑 → 𝑁 ∈ ℕ0)

Assertion

Ref	Expression
relexpss1d	⊢ (𝜑 → (𝐴↑𝑟𝑁) ⊆ (𝐵↑𝑟𝑁))

Proof of Theorem relexpss1d

Dummy variables 𝑥 𝑦 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		relexpss1d.n	. . 3 ⊢ (𝜑 → 𝑁 ∈ ℕ0)
2		elnn0 11893	. . 3 ⊢ (𝑁 ∈ ℕ0 ↔ (𝑁 ∈ ℕ ∨ 𝑁 = 0))
3	1, 2	sylib 220	. 2 ⊢ (𝜑 → (𝑁 ∈ ℕ ∨ 𝑁 = 0))
4		oveq2 7158	. . . . . 6 ⊢ (𝑥 = 1 → (𝐴↑𝑟𝑥) = (𝐴↑𝑟1))
5		oveq2 7158	. . . . . 6 ⊢ (𝑥 = 1 → (𝐵↑𝑟𝑥) = (𝐵↑𝑟1))
6	4, 5	sseq12d 4000	. . . . 5 ⊢ (𝑥 = 1 → ((𝐴↑𝑟𝑥) ⊆ (𝐵↑𝑟𝑥) ↔ (𝐴↑𝑟1) ⊆ (𝐵↑𝑟1)))
7	6	imbi2d 343	. . . 4 ⊢ (𝑥 = 1 → ((𝜑 → (𝐴↑𝑟𝑥) ⊆ (𝐵↑𝑟𝑥)) ↔ (𝜑 → (𝐴↑𝑟1) ⊆ (𝐵↑𝑟1))))
8		oveq2 7158	. . . . . 6 ⊢ (𝑥 = 𝑦 → (𝐴↑𝑟𝑥) = (𝐴↑𝑟𝑦))
9		oveq2 7158	. . . . . 6 ⊢ (𝑥 = 𝑦 → (𝐵↑𝑟𝑥) = (𝐵↑𝑟𝑦))
10	8, 9	sseq12d 4000	. . . . 5 ⊢ (𝑥 = 𝑦 → ((𝐴↑𝑟𝑥) ⊆ (𝐵↑𝑟𝑥) ↔ (𝐴↑𝑟𝑦) ⊆ (𝐵↑𝑟𝑦)))
11	10	imbi2d 343	. . . 4 ⊢ (𝑥 = 𝑦 → ((𝜑 → (𝐴↑𝑟𝑥) ⊆ (𝐵↑𝑟𝑥)) ↔ (𝜑 → (𝐴↑𝑟𝑦) ⊆ (𝐵↑𝑟𝑦))))
12		oveq2 7158	. . . . . 6 ⊢ (𝑥 = (𝑦 + 1) → (𝐴↑𝑟𝑥) = (𝐴↑𝑟(𝑦 + 1)))
13		oveq2 7158	. . . . . 6 ⊢ (𝑥 = (𝑦 + 1) → (𝐵↑𝑟𝑥) = (𝐵↑𝑟(𝑦 + 1)))
14	12, 13	sseq12d 4000	. . . . 5 ⊢ (𝑥 = (𝑦 + 1) → ((𝐴↑𝑟𝑥) ⊆ (𝐵↑𝑟𝑥) ↔ (𝐴↑𝑟(𝑦 + 1)) ⊆ (𝐵↑𝑟(𝑦 + 1))))
15	14	imbi2d 343	. . . 4 ⊢ (𝑥 = (𝑦 + 1) → ((𝜑 → (𝐴↑𝑟𝑥) ⊆ (𝐵↑𝑟𝑥)) ↔ (𝜑 → (𝐴↑𝑟(𝑦 + 1)) ⊆ (𝐵↑𝑟(𝑦 + 1)))))
16		oveq2 7158	. . . . . 6 ⊢ (𝑥 = 𝑁 → (𝐴↑𝑟𝑥) = (𝐴↑𝑟𝑁))
17		oveq2 7158	. . . . . 6 ⊢ (𝑥 = 𝑁 → (𝐵↑𝑟𝑥) = (𝐵↑𝑟𝑁))
18	16, 17	sseq12d 4000	. . . . 5 ⊢ (𝑥 = 𝑁 → ((𝐴↑𝑟𝑥) ⊆ (𝐵↑𝑟𝑥) ↔ (𝐴↑𝑟𝑁) ⊆ (𝐵↑𝑟𝑁)))
19	18	imbi2d 343	. . . 4 ⊢ (𝑥 = 𝑁 → ((𝜑 → (𝐴↑𝑟𝑥) ⊆ (𝐵↑𝑟𝑥)) ↔ (𝜑 → (𝐴↑𝑟𝑁) ⊆ (𝐵↑𝑟𝑁))))
20		relexpss1d.a	. . . . 5 ⊢ (𝜑 → 𝐴 ⊆ 𝐵)
21		relexpss1d.b	. . . . . . 7 ⊢ (𝜑 → 𝐵 ∈ V)
22	21, 20	ssexd 5221	. . . . . 6 ⊢ (𝜑 → 𝐴 ∈ V)
23	22	relexp1d 14384	. . . . 5 ⊢ (𝜑 → (𝐴↑𝑟1) = 𝐴)
24	21	relexp1d 14384	. . . . 5 ⊢ (𝜑 → (𝐵↑𝑟1) = 𝐵)
25	20, 23, 24	3sstr4d 4014	. . . 4 ⊢ (𝜑 → (𝐴↑𝑟1) ⊆ (𝐵↑𝑟1))
26		simp3 1134	. . . . . . . 8 ⊢ ((𝑦 ∈ ℕ ∧ 𝜑 ∧ (𝐴↑𝑟𝑦) ⊆ (𝐵↑𝑟𝑦)) → (𝐴↑𝑟𝑦) ⊆ (𝐵↑𝑟𝑦))
27	20	3ad2ant2 1130	. . . . . . . 8 ⊢ ((𝑦 ∈ ℕ ∧ 𝜑 ∧ (𝐴↑𝑟𝑦) ⊆ (𝐵↑𝑟𝑦)) → 𝐴 ⊆ 𝐵)
28	26, 27	coss12d 14326	. . . . . . 7 ⊢ ((𝑦 ∈ ℕ ∧ 𝜑 ∧ (𝐴↑𝑟𝑦) ⊆ (𝐵↑𝑟𝑦)) → ((𝐴↑𝑟𝑦) ∘ 𝐴) ⊆ ((𝐵↑𝑟𝑦) ∘ 𝐵))
29	22	3ad2ant2 1130	. . . . . . . 8 ⊢ ((𝑦 ∈ ℕ ∧ 𝜑 ∧ (𝐴↑𝑟𝑦) ⊆ (𝐵↑𝑟𝑦)) → 𝐴 ∈ V)
30		simp1 1132	. . . . . . . 8 ⊢ ((𝑦 ∈ ℕ ∧ 𝜑 ∧ (𝐴↑𝑟𝑦) ⊆ (𝐵↑𝑟𝑦)) → 𝑦 ∈ ℕ)
31		relexpsucnnr 14378	. . . . . . . 8 ⊢ ((𝐴 ∈ V ∧ 𝑦 ∈ ℕ) → (𝐴↑𝑟(𝑦 + 1)) = ((𝐴↑𝑟𝑦) ∘ 𝐴))
32	29, 30, 31	syl2anc 586	. . . . . . 7 ⊢ ((𝑦 ∈ ℕ ∧ 𝜑 ∧ (𝐴↑𝑟𝑦) ⊆ (𝐵↑𝑟𝑦)) → (𝐴↑𝑟(𝑦 + 1)) = ((𝐴↑𝑟𝑦) ∘ 𝐴))
33	21	3ad2ant2 1130	. . . . . . . 8 ⊢ ((𝑦 ∈ ℕ ∧ 𝜑 ∧ (𝐴↑𝑟𝑦) ⊆ (𝐵↑𝑟𝑦)) → 𝐵 ∈ V)
34		relexpsucnnr 14378	. . . . . . . 8 ⊢ ((𝐵 ∈ V ∧ 𝑦 ∈ ℕ) → (𝐵↑𝑟(𝑦 + 1)) = ((𝐵↑𝑟𝑦) ∘ 𝐵))
35	33, 30, 34	syl2anc 586	. . . . . . 7 ⊢ ((𝑦 ∈ ℕ ∧ 𝜑 ∧ (𝐴↑𝑟𝑦) ⊆ (𝐵↑𝑟𝑦)) → (𝐵↑𝑟(𝑦 + 1)) = ((𝐵↑𝑟𝑦) ∘ 𝐵))
36	28, 32, 35	3sstr4d 4014	. . . . . 6 ⊢ ((𝑦 ∈ ℕ ∧ 𝜑 ∧ (𝐴↑𝑟𝑦) ⊆ (𝐵↑𝑟𝑦)) → (𝐴↑𝑟(𝑦 + 1)) ⊆ (𝐵↑𝑟(𝑦 + 1)))
37	36	3exp 1115	. . . . 5 ⊢ (𝑦 ∈ ℕ → (𝜑 → ((𝐴↑𝑟𝑦) ⊆ (𝐵↑𝑟𝑦) → (𝐴↑𝑟(𝑦 + 1)) ⊆ (𝐵↑𝑟(𝑦 + 1)))))
38	37	a2d 29	. . . 4 ⊢ (𝑦 ∈ ℕ → ((𝜑 → (𝐴↑𝑟𝑦) ⊆ (𝐵↑𝑟𝑦)) → (𝜑 → (𝐴↑𝑟(𝑦 + 1)) ⊆ (𝐵↑𝑟(𝑦 + 1)))))
39	7, 11, 15, 19, 25, 38	nnind 11650	. . 3 ⊢ (𝑁 ∈ ℕ → (𝜑 → (𝐴↑𝑟𝑁) ⊆ (𝐵↑𝑟𝑁)))
40		simpr 487	. . . . . 6 ⊢ ((𝑁 = 0 ∧ 𝜑) → 𝜑)
41		dmss 5766	. . . . . . . 8 ⊢ (𝐴 ⊆ 𝐵 → dom 𝐴 ⊆ dom 𝐵)
42		rnss 5804	. . . . . . . 8 ⊢ (𝐴 ⊆ 𝐵 → ran 𝐴 ⊆ ran 𝐵)
43	41, 42	jca 514	. . . . . . 7 ⊢ (𝐴 ⊆ 𝐵 → (dom 𝐴 ⊆ dom 𝐵 ∧ ran 𝐴 ⊆ ran 𝐵))
44		unss12 4158	. . . . . . 7 ⊢ ((dom 𝐴 ⊆ dom 𝐵 ∧ ran 𝐴 ⊆ ran 𝐵) → (dom 𝐴 ∪ ran 𝐴) ⊆ (dom 𝐵 ∪ ran 𝐵))
45	20, 43, 44	3syl 18	. . . . . 6 ⊢ (𝜑 → (dom 𝐴 ∪ ran 𝐴) ⊆ (dom 𝐵 ∪ ran 𝐵))
46		ssres2 5876	. . . . . 6 ⊢ ((dom 𝐴 ∪ ran 𝐴) ⊆ (dom 𝐵 ∪ ran 𝐵) → ( I ↾ (dom 𝐴 ∪ ran 𝐴)) ⊆ ( I ↾ (dom 𝐵 ∪ ran 𝐵)))
47	40, 45, 46	3syl 18	. . . . 5 ⊢ ((𝑁 = 0 ∧ 𝜑) → ( I ↾ (dom 𝐴 ∪ ran 𝐴)) ⊆ ( I ↾ (dom 𝐵 ∪ ran 𝐵)))
48		simpl 485	. . . . . . 7 ⊢ ((𝑁 = 0 ∧ 𝜑) → 𝑁 = 0)
49	48	oveq2d 7166	. . . . . 6 ⊢ ((𝑁 = 0 ∧ 𝜑) → (𝐴↑𝑟𝑁) = (𝐴↑𝑟0))
50		relexp0g 14375	. . . . . . 7 ⊢ (𝐴 ∈ V → (𝐴↑𝑟0) = ( I ↾ (dom 𝐴 ∪ ran 𝐴)))
51	40, 22, 50	3syl 18	. . . . . 6 ⊢ ((𝑁 = 0 ∧ 𝜑) → (𝐴↑𝑟0) = ( I ↾ (dom 𝐴 ∪ ran 𝐴)))
52	49, 51	eqtrd 2856	. . . . 5 ⊢ ((𝑁 = 0 ∧ 𝜑) → (𝐴↑𝑟𝑁) = ( I ↾ (dom 𝐴 ∪ ran 𝐴)))
53	48	oveq2d 7166	. . . . . 6 ⊢ ((𝑁 = 0 ∧ 𝜑) → (𝐵↑𝑟𝑁) = (𝐵↑𝑟0))
54		relexp0g 14375	. . . . . . 7 ⊢ (𝐵 ∈ V → (𝐵↑𝑟0) = ( I ↾ (dom 𝐵 ∪ ran 𝐵)))
55	40, 21, 54	3syl 18	. . . . . 6 ⊢ ((𝑁 = 0 ∧ 𝜑) → (𝐵↑𝑟0) = ( I ↾ (dom 𝐵 ∪ ran 𝐵)))
56	53, 55	eqtrd 2856	. . . . 5 ⊢ ((𝑁 = 0 ∧ 𝜑) → (𝐵↑𝑟𝑁) = ( I ↾ (dom 𝐵 ∪ ran 𝐵)))
57	47, 52, 56	3sstr4d 4014	. . . 4 ⊢ ((𝑁 = 0 ∧ 𝜑) → (𝐴↑𝑟𝑁) ⊆ (𝐵↑𝑟𝑁))
58	57	ex 415	. . 3 ⊢ (𝑁 = 0 → (𝜑 → (𝐴↑𝑟𝑁) ⊆ (𝐵↑𝑟𝑁)))
59	39, 58	jaoi 853	. 2 ⊢ ((𝑁 ∈ ℕ ∨ 𝑁 = 0) → (𝜑 → (𝐴↑𝑟𝑁) ⊆ (𝐵↑𝑟𝑁)))
60	3, 59	mpcom 38	1 ⊢ (𝜑 → (𝐴↑𝑟𝑁) ⊆ (𝐵↑𝑟𝑁))

Syntax hints:   → wi 4   ∧ wa 398   ∨ wo 843   ∧ w3a 1083   = wceq 1533   ∈ wcel 2110  Vcvv 3495   ∪ cun 3934   ⊆ wss 3936   I cid 5454  dom cdm 5550  ran crn 5551   ↾ cres 5552   ∘ ccom 5554  (class class class)co 7150  0cc0 10531  1c1 10532   + caddc 10534  ℕcn 11632  ℕ₀cn0 11891  ↑_𝑟crelexp 14373

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1792  ax-4 1806  ax-5 1907  ax-6 1966  ax-7 2011  ax-8 2112  ax-9 2120  ax-10 2141  ax-11 2156  ax-12 2172  ax-ext 2793  ax-sep 5196  ax-nul 5203  ax-pow 5259  ax-pr 5322  ax-un 7455  ax-cnex 10587  ax-resscn 10588  ax-1cn 10589  ax-icn 10590  ax-addcl 10591  ax-addrcl 10592  ax-mulcl 10593  ax-mulrcl 10594  ax-mulcom 10595  ax-addass 10596  ax-mulass 10597  ax-distr 10598  ax-i2m1 10599  ax-1ne0 10600  ax-1rid 10601  ax-rnegex 10602  ax-rrecex 10603  ax-cnre 10604  ax-pre-lttri 10605  ax-pre-lttrn 10606  ax-pre-ltadd 10607  ax-pre-mulgt0 10608

This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3or 1084  df-3an 1085  df-tru 1536  df-ex 1777  df-nf 1781  df-sb 2066  df-mo 2618  df-eu 2650  df-clab 2800  df-cleq 2814  df-clel 2893  df-nfc 2963  df-ne 3017  df-nel 3124  df-ral 3143  df-rex 3144  df-reu 3145  df-rab 3147  df-v 3497  df-sbc 3773  df-csb 3884  df-dif 3939  df-un 3941  df-in 3943  df-ss 3952  df-pss 3954  df-nul 4292  df-if 4468  df-pw 4541  df-sn 4562  df-pr 4564  df-tp 4566  df-op 4568  df-uni 4833  df-iun 4914  df-br 5060  df-opab 5122  df-mpt 5140  df-tr 5166  df-id 5455  df-eprel 5460  df-po 5469  df-so 5470  df-fr 5509  df-we 5511  df-xp 5556  df-rel 5557  df-cnv 5558  df-co 5559  df-dm 5560  df-rn 5561  df-res 5562  df-ima 5563  df-pred 6143  df-ord 6189  df-on 6190  df-lim 6191  df-suc 6192  df-iota 6309  df-fun 6352  df-fn 6353  df-f 6354  df-f1 6355  df-fo 6356  df-f1o 6357  df-fv 6358  df-riota 7108  df-ov 7153  df-oprab 7154  df-mpo 7155  df-om 7575  df-2nd 7684  df-wrecs 7941  df-recs 8002  df-rdg 8040  df-er 8283  df-en 8504  df-dom 8505  df-sdom 8506  df-pnf 10671  df-mnf 10672  df-xr 10673  df-ltxr 10674  df-le 10675  df-sub 10866  df-neg 10867  df-nn 11633  df-n0 11892  df-z 11976  df-uz 12238  df-seq 13364  df-relexp 14374

This theorem is referenced by:  corcltrcl  40077  cotrclrcl  40080