ixpssmapc - Mathbox for Glauco Siliprandi

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Theorem ixpssmapc 45051

Description: An infinite Cartesian product is a subset of set exponentiation. (Contributed by Glauco Siliprandi, 24-Dec-2020.)

**Hypotheses**
Ref	Expression
ixpssmapc.x	⊢ Ⅎ𝑥𝜑
ixpssmapc.c	⊢ (𝜑 → 𝐶 ∈ 𝑉)
ixpssmapc.b	⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → 𝐵 ⊆ 𝐶)

**Assertion**
Ref	Expression
ixpssmapc	⊢ (𝜑 → X𝑥 ∈ 𝐴 𝐵 ⊆ (𝐶 ↑_m 𝐴))

Distinct variable groups: 𝑥,𝐴 𝑥,𝐶 Allowed substitution hints: 𝜑(𝑥) 𝐵(𝑥) 𝑉(𝑥)

**Proof of Theorem ixpssmapc**
Step	Hyp	Ref	Expression
1		ixpssmapc.c	. . . 4 ⊢ (𝜑 → 𝐶 ∈ 𝑉)
2		ixpssmapc.x	. . . . . 6 ⊢ Ⅎ𝑥𝜑
3		ixpssmapc.b	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → 𝐵 ⊆ 𝐶)
4	3	ex 412	. . . . . 6 ⊢ (𝜑 → (𝑥 ∈ 𝐴 → 𝐵 ⊆ 𝐶))
5	2, 4	ralrimi 3227	. . . . 5 ⊢ (𝜑 → ∀𝑥 ∈ 𝐴 𝐵 ⊆ 𝐶)
6		iunss 4997	. . . . 5 ⊢ (∪ 𝑥 ∈ 𝐴 𝐵 ⊆ 𝐶 ↔ ∀𝑥 ∈ 𝐴 𝐵 ⊆ 𝐶)
7	5, 6	sylibr 234	. . . 4 ⊢ (𝜑 → ∪ 𝑥 ∈ 𝐴 𝐵 ⊆ 𝐶)
8	1, 7	ssexd 5266	. . 3 ⊢ (𝜑 → ∪ 𝑥 ∈ 𝐴 𝐵 ∈ V)
9		ixpssmap2g 8861	. . 3 ⊢ (∪ 𝑥 ∈ 𝐴 𝐵 ∈ V → X𝑥 ∈ 𝐴 𝐵 ⊆ (∪ 𝑥 ∈ 𝐴 𝐵 ↑_m 𝐴))
10	8, 9	syl 17	. 2 ⊢ (𝜑 → X𝑥 ∈ 𝐴 𝐵 ⊆ (∪ 𝑥 ∈ 𝐴 𝐵 ↑_m 𝐴))
11		mapss 8823	. . 3 ⊢ ((𝐶 ∈ 𝑉 ∧ ∪ 𝑥 ∈ 𝐴 𝐵 ⊆ 𝐶) → (∪ 𝑥 ∈ 𝐴 𝐵 ↑_m 𝐴) ⊆ (𝐶 ↑_m 𝐴))
12	1, 7, 11	syl2anc 584	. 2 ⊢ (𝜑 → (∪ 𝑥 ∈ 𝐴 𝐵 ↑_m 𝐴) ⊆ (𝐶 ↑_m 𝐴))
13	10, 12	sstrd 3948	1 ⊢ (𝜑 → X𝑥 ∈ 𝐴 𝐵 ⊆ (𝐶 ↑_m 𝐴))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 395 Ⅎwnf 1783 ∈ wcel 2109 ∀wral 3044 Vcvv 3438 ⊆ wss 3905 ∪ ciun 4944 (class class class)co 7353 ↑_m cmap 8760 Xcixp 8831

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2701 ax-sep 5238 ax-nul 5248 ax-pow 5307 ax-pr 5374 ax-un 7675

This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2533 df-eu 2562 df-clab 2708 df-cleq 2721 df-clel 2803 df-nfc 2878 df-ne 2926 df-ral 3045 df-rex 3054 df-rab 3397 df-v 3440 df-sbc 3745 df-csb 3854 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-nul 4287 df-if 4479 df-pw 4555 df-sn 4580 df-pr 4582 df-op 4586 df-uni 4862 df-iun 4946 df-br 5096 df-opab 5158 df-mpt 5177 df-id 5518 df-xp 5629 df-rel 5630 df-cnv 5631 df-co 5632 df-dm 5633 df-rn 5634 df-res 5635 df-ima 5636 df-iota 6442 df-fun 6488 df-fn 6489 df-f 6490 df-fv 6494 df-ov 7356 df-oprab 7357 df-mpo 7358 df-1st 7931 df-2nd 7932 df-map 8762 df-ixp 8832

This theorem is referenced by: ioorrnopnlem 46286

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