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| Mirrors > Home > MPE Home > Th. List > ixpconstg | Structured version Visualization version GIF version | ||
| Description: Infinite Cartesian product of a constant 𝐵. (Contributed by Mario Carneiro, 11-Jan-2015.) |
| Ref | Expression |
|---|---|
| ixpconstg | ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → X𝑥 ∈ 𝐴 𝐵 = (𝐵 ↑m 𝐴)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | vex 3454 | . . . . 5 ⊢ 𝑓 ∈ V | |
| 2 | 1 | elixpconst 8938 | . . . 4 ⊢ (𝑓 ∈ X𝑥 ∈ 𝐴 𝐵 ↔ 𝑓:𝐴⟶𝐵) |
| 3 | 2 | eqabi 2895 | . . 3 ⊢ X𝑥 ∈ 𝐴 𝐵 = {𝑓 ∣ 𝑓:𝐴⟶𝐵} |
| 4 | mapvalg 8861 | . . 3 ⊢ ((𝐵 ∈ 𝑊 ∧ 𝐴 ∈ 𝑉) → (𝐵 ↑m 𝐴) = {𝑓 ∣ 𝑓:𝐴⟶𝐵}) | |
| 5 | 3, 4 | eqtr4id 2814 | . 2 ⊢ ((𝐵 ∈ 𝑊 ∧ 𝐴 ∈ 𝑉) → X𝑥 ∈ 𝐴 𝐵 = (𝐵 ↑m 𝐴)) |
| 6 | 5 | ancoms 464 | 1 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → X𝑥 ∈ 𝐴 𝐵 = (𝐵 ↑m 𝐴)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1569 ∈ wcel 2144 {cab 2738 ⟶wf 6537 (class class class)co 7422 ↑m cmap 8852 Xcixp 8930 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7753 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-sbc 3739 df-ss 3897 df-dif 4046 df-in 4090 df-un 4150 df-nul 4278 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-br 5103 df-opab 5167 df-mpt 5186 df-id 5545 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-iota 6496 df-fun 6543 df-fn 6544 df-f 6545 df-fv 6549 df-ov 7425 df-oprab 7426 df-mpo 7427 df-map 8854 df-ixp 8931 |
| This theorem is used by: ixpconst 8940 mapsnf1o 8972 prdshom 17645 pwsbas 17665 frlmip 22091 pttoponconst 23923 xkoptsub 23980 xkopt 23981 tmdgsum2 24422 rrxip 25718 ovnlecvr2 47727 tmachlem-tpbase 48056 naryfvalixp 49848 |
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