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| Mirrors > Home > MPE Home > Th. List > ixpssmapg | Structured version Visualization version GIF version | ||
| Description: An infinite Cartesian product is a subset of set exponentiation. (Contributed by Jeff Madsen, 19-Jun-2011.) |
| Ref | Expression |
|---|---|
| ixpssmapg | ⊢ (∀𝑥 ∈ 𝐴 𝐵 ∈ 𝑉 → X𝑥 ∈ 𝐴 𝐵 ⊆ (∪ 𝑥 ∈ 𝐴 𝐵 ↑m 𝐴)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | n0i 4268 | . . . . . . 7 ⊢ (𝑓 ∈ X𝑥 ∈ 𝐴 𝐵 → ¬ X𝑥 ∈ 𝐴 𝐵 = ∅) | |
| 2 | ixpprc 8857 | . . . . . . 7 ⊢ (¬ 𝐴 ∈ V → X𝑥 ∈ 𝐴 𝐵 = ∅) | |
| 3 | 1, 2 | nsyl2 141 | . . . . . 6 ⊢ (𝑓 ∈ X𝑥 ∈ 𝐴 𝐵 → 𝐴 ∈ V) |
| 4 | id 22 | . . . . . 6 ⊢ (∀𝑥 ∈ 𝐴 𝐵 ∈ 𝑉 → ∀𝑥 ∈ 𝐴 𝐵 ∈ 𝑉) | |
| 5 | iunexg 7905 | . . . . . 6 ⊢ ((𝐴 ∈ V ∧ ∀𝑥 ∈ 𝐴 𝐵 ∈ 𝑉) → ∪ 𝑥 ∈ 𝐴 𝐵 ∈ V) | |
| 6 | 3, 4, 5 | syl2anr 603 | . . . . 5 ⊢ ((∀𝑥 ∈ 𝐴 𝐵 ∈ 𝑉 ∧ 𝑓 ∈ X𝑥 ∈ 𝐴 𝐵) → ∪ 𝑥 ∈ 𝐴 𝐵 ∈ V) |
| 7 | ixpssmap2g 8865 | . . . . 5 ⊢ (∪ 𝑥 ∈ 𝐴 𝐵 ∈ V → X𝑥 ∈ 𝐴 𝐵 ⊆ (∪ 𝑥 ∈ 𝐴 𝐵 ↑m 𝐴)) | |
| 8 | 6, 7 | syl 17 | . . . 4 ⊢ ((∀𝑥 ∈ 𝐴 𝐵 ∈ 𝑉 ∧ 𝑓 ∈ X𝑥 ∈ 𝐴 𝐵) → X𝑥 ∈ 𝐴 𝐵 ⊆ (∪ 𝑥 ∈ 𝐴 𝐵 ↑m 𝐴)) |
| 9 | simpr 485 | . . . 4 ⊢ ((∀𝑥 ∈ 𝐴 𝐵 ∈ 𝑉 ∧ 𝑓 ∈ X𝑥 ∈ 𝐴 𝐵) → 𝑓 ∈ X𝑥 ∈ 𝐴 𝐵) | |
| 10 | 8, 9 | sseldd 3916 | . . 3 ⊢ ((∀𝑥 ∈ 𝐴 𝐵 ∈ 𝑉 ∧ 𝑓 ∈ X𝑥 ∈ 𝐴 𝐵) → 𝑓 ∈ (∪ 𝑥 ∈ 𝐴 𝐵 ↑m 𝐴)) |
| 11 | 10 | ex 413 | . 2 ⊢ (∀𝑥 ∈ 𝐴 𝐵 ∈ 𝑉 → (𝑓 ∈ X𝑥 ∈ 𝐴 𝐵 → 𝑓 ∈ (∪ 𝑥 ∈ 𝐴 𝐵 ↑m 𝐴))) |
| 12 | 11 | ssrdv 3921 | 1 ⊢ (∀𝑥 ∈ 𝐴 𝐵 ∈ 𝑉 → X𝑥 ∈ 𝐴 𝐵 ⊆ (∪ 𝑥 ∈ 𝐴 𝐵 ↑m 𝐴)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 396 = wceq 1547 ∈ wcel 2119 ∀wral 3053 Vcvv 3431 ⊆ wss 3883 ∅c0 4261 ∪ ciun 4921 (class class class)co 7356 ↑m cmap 8763 Xcixp 8835 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-10 2152 ax-11 2168 ax-12 2189 ax-ext 2711 ax-rep 5199 ax-sep 5218 ax-nul 5228 ax-pow 5294 ax-pr 5362 ax-un 7678 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-3an 1094 df-tru 1550 df-fal 1560 df-ex 1787 df-nf 1791 df-sb 2074 df-mo 2543 df-eu 2573 df-clab 2718 df-cleq 2731 df-clel 2814 df-nfc 2888 df-ne 2935 df-ral 3054 df-rex 3064 df-rab 3392 df-v 3433 df-sbc 3724 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-nul 4262 df-if 4455 df-pw 4531 df-sn 4556 df-pr 4558 df-op 4562 df-uni 4839 df-iun 4923 df-br 5073 df-opab 5135 df-mpt 5154 df-id 5513 df-xp 5624 df-rel 5625 df-cnv 5626 df-co 5627 df-dm 5628 df-rn 5629 df-iota 6441 df-fun 6487 df-fn 6488 df-f 6489 df-fv 6493 df-ov 7359 df-oprab 7360 df-mpo 7361 df-map 8765 df-ixp 8836 |
| This theorem is referenced by: ixpssmap 8870 gruixp 10723 hoissrrn 46992 hoissrrn2 47021 |
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