| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > ixpssmapg | 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 | ixpfn 6772 | . . . . . . 7 ⊢ (𝑓 ∈ X𝑥 ∈ 𝐴 𝐵 → 𝑓 Fn 𝐴) | |
| 2 | fndm 5358 | . . . . . . . 8 ⊢ (𝑓 Fn 𝐴 → dom 𝑓 = 𝐴) | |
| 3 | vex 2766 | . . . . . . . . 9 ⊢ 𝑓 ∈ V | |
| 4 | 3 | dmex 4933 | . . . . . . . 8 ⊢ dom 𝑓 ∈ V |
| 5 | 2, 4 | eqeltrrdi 2288 | . . . . . . 7 ⊢ (𝑓 Fn 𝐴 → 𝐴 ∈ V) |
| 6 | 1, 5 | syl 14 | . . . . . 6 ⊢ (𝑓 ∈ X𝑥 ∈ 𝐴 𝐵 → 𝐴 ∈ V) |
| 7 | id 19 | . . . . . 6 ⊢ (∀𝑥 ∈ 𝐴 𝐵 ∈ 𝑉 → ∀𝑥 ∈ 𝐴 𝐵 ∈ 𝑉) | |
| 8 | iunexg 6185 | . . . . . 6 ⊢ ((𝐴 ∈ V ∧ ∀𝑥 ∈ 𝐴 𝐵 ∈ 𝑉) → ∪ 𝑥 ∈ 𝐴 𝐵 ∈ V) | |
| 9 | 6, 7, 8 | syl2anr 290 | . . . . 5 ⊢ ((∀𝑥 ∈ 𝐴 𝐵 ∈ 𝑉 ∧ 𝑓 ∈ X𝑥 ∈ 𝐴 𝐵) → ∪ 𝑥 ∈ 𝐴 𝐵 ∈ V) |
| 10 | ixpssmap2g 6795 | . . . . 5 ⊢ (∪ 𝑥 ∈ 𝐴 𝐵 ∈ V → X𝑥 ∈ 𝐴 𝐵 ⊆ (∪ 𝑥 ∈ 𝐴 𝐵 ↑𝑚 𝐴)) | |
| 11 | 9, 10 | syl 14 | . . . 4 ⊢ ((∀𝑥 ∈ 𝐴 𝐵 ∈ 𝑉 ∧ 𝑓 ∈ X𝑥 ∈ 𝐴 𝐵) → X𝑥 ∈ 𝐴 𝐵 ⊆ (∪ 𝑥 ∈ 𝐴 𝐵 ↑𝑚 𝐴)) |
| 12 | simpr 110 | . . . 4 ⊢ ((∀𝑥 ∈ 𝐴 𝐵 ∈ 𝑉 ∧ 𝑓 ∈ X𝑥 ∈ 𝐴 𝐵) → 𝑓 ∈ X𝑥 ∈ 𝐴 𝐵) | |
| 13 | 11, 12 | sseldd 3185 | . . 3 ⊢ ((∀𝑥 ∈ 𝐴 𝐵 ∈ 𝑉 ∧ 𝑓 ∈ X𝑥 ∈ 𝐴 𝐵) → 𝑓 ∈ (∪ 𝑥 ∈ 𝐴 𝐵 ↑𝑚 𝐴)) |
| 14 | 13 | ex 115 | . 2 ⊢ (∀𝑥 ∈ 𝐴 𝐵 ∈ 𝑉 → (𝑓 ∈ X𝑥 ∈ 𝐴 𝐵 → 𝑓 ∈ (∪ 𝑥 ∈ 𝐴 𝐵 ↑𝑚 𝐴))) |
| 15 | 14 | ssrdv 3190 | 1 ⊢ (∀𝑥 ∈ 𝐴 𝐵 ∈ 𝑉 → X𝑥 ∈ 𝐴 𝐵 ⊆ (∪ 𝑥 ∈ 𝐴 𝐵 ↑𝑚 𝐴)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 ∈ wcel 2167 ∀wral 2475 Vcvv 2763 ⊆ wss 3157 ∪ ciun 3917 dom cdm 4664 Fn wfn 5254 (class class class)co 5925 ↑𝑚 cmap 6716 Xcixp 6766 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 615 ax-in2 616 ax-io 710 ax-5 1461 ax-7 1462 ax-gen 1463 ax-ie1 1507 ax-ie2 1508 ax-8 1518 ax-10 1519 ax-11 1520 ax-i12 1521 ax-bndl 1523 ax-4 1524 ax-17 1540 ax-i9 1544 ax-ial 1548 ax-i5r 1549 ax-13 2169 ax-14 2170 ax-ext 2178 ax-coll 4149 ax-sep 4152 ax-pow 4208 ax-pr 4243 ax-un 4469 ax-setind 4574 |
| This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-fal 1370 df-nf 1475 df-sb 1777 df-eu 2048 df-mo 2049 df-clab 2183 df-cleq 2189 df-clel 2192 df-nfc 2328 df-ne 2368 df-ral 2480 df-rex 2481 df-reu 2482 df-rab 2484 df-v 2765 df-sbc 2990 df-csb 3085 df-dif 3159 df-un 3161 df-in 3163 df-ss 3170 df-pw 3608 df-sn 3629 df-pr 3630 df-op 3632 df-uni 3841 df-iun 3919 df-br 4035 df-opab 4096 df-mpt 4097 df-id 4329 df-xp 4670 df-rel 4671 df-cnv 4672 df-co 4673 df-dm 4674 df-rn 4675 df-res 4676 df-ima 4677 df-iota 5220 df-fun 5261 df-fn 5262 df-f 5263 df-f1 5264 df-fo 5265 df-f1o 5266 df-fv 5267 df-ov 5928 df-oprab 5929 df-mpo 5930 df-map 6718 df-ixp 6767 |
| This theorem is referenced by: ixpssmap 6800 |
| Copyright terms: Public domain | W3C validator |