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| Mirrors > Home > MPE Home > Th. List > Mathboxes > ixpssmapc | Structured version Visualization version GIF version | ||
| Description: An infinite Cartesian product is a subset of set exponentiation. (Contributed by Glauco Siliprandi, 24-Dec-2020.) |
| Ref | Expression |
|---|---|
| ixpssmapc.x | ⊢ Ⅎ𝑥𝜑 |
| ixpssmapc.c | ⊢ (𝜑 → 𝐶 ∈ 𝑉) |
| ixpssmapc.b | ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → 𝐵 ⊆ 𝐶) |
| Ref | Expression |
|---|---|
| ixpssmapc | ⊢ (𝜑 → X𝑥 ∈ 𝐴 𝐵 ⊆ (𝐶 ↑m 𝐴)) |
| 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 416 | . . . . . 6 ⊢ (𝜑 → (𝑥 ∈ 𝐴 → 𝐵 ⊆ 𝐶)) |
| 5 | 2, 4 | ralrimi 3259 | . . . . 5 ⊢ (𝜑 → ∀𝑥 ∈ 𝐴 𝐵 ⊆ 𝐶) |
| 6 | iunss 5001 | . . . . 5 ⊢ (∪ 𝑥 ∈ 𝐴 𝐵 ⊆ 𝐶 ↔ ∀𝑥 ∈ 𝐴 𝐵 ⊆ 𝐶) | |
| 7 | 5, 6 | sylibr 236 | . . . 4 ⊢ (𝜑 → ∪ 𝑥 ∈ 𝐴 𝐵 ⊆ 𝐶) |
| 8 | 1, 7 | ssexd 5279 | . . 3 ⊢ (𝜑 → ∪ 𝑥 ∈ 𝐴 𝐵 ∈ V) |
| 9 | ixpssmap2g 8905 | . . 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 8867 | . . 3 ⊢ ((𝐶 ∈ 𝑉 ∧ ∪ 𝑥 ∈ 𝐴 𝐵 ⊆ 𝐶) → (∪ 𝑥 ∈ 𝐴 𝐵 ↑m 𝐴) ⊆ (𝐶 ↑m 𝐴)) | |
| 12 | 1, 7, 11 | syl2anc 593 | . 2 ⊢ (𝜑 → (∪ 𝑥 ∈ 𝐴 𝐵 ↑m 𝐴) ⊆ (𝐶 ↑m 𝐴)) |
| 13 | 10, 12 | sstrd 3946 | 1 ⊢ (𝜑 → X𝑥 ∈ 𝐴 𝐵 ⊆ (𝐶 ↑m 𝐴)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 399 Ⅎwnf 1802 ∈ wcel 2141 ∀wral 3075 Vcvv 3453 ⊆ wss 3904 ∪ ciun 4948 (class class class)co 7392 ↑m cmap 8803 Xcixp 8875 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-sep 5245 ax-nul 5255 ax-pow 5321 ax-pr 5389 ax-un 7714 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3076 df-rex 3086 df-rab 3414 df-v 3455 df-sbc 3745 df-csb 3853 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4582 df-pr 4584 df-op 4588 df-uni 4865 df-iun 4950 df-br 5100 df-opab 5162 df-mpt 5181 df-id 5540 df-xp 5651 df-rel 5652 df-cnv 5653 df-co 5654 df-dm 5655 df-rn 5656 df-res 5657 df-ima 5658 df-iota 6473 df-fun 6519 df-fn 6520 df-f 6521 df-fv 6525 df-ov 7395 df-oprab 7396 df-mpo 7397 df-1st 7966 df-2nd 7967 df-map 8805 df-ixp 8876 |
| This theorem is referenced by: ioorrnopnlem 46842 |
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