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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 3458 | . . . . 5 ⊢ 𝑓 ∈ V | |
| 2 | 1 | elixpconst 8971 | . . . 4 ⊢ (𝑓 ∈ X𝑥 ∈ 𝐴 𝐵 ↔ 𝑓:𝐴⟶𝐵) |
| 3 | 2 | eqabi 2899 | . . 3 ⊢ X𝑥 ∈ 𝐴 𝐵 = {𝑓 ∣ 𝑓:𝐴⟶𝐵} |
| 4 | mapvalg 8894 | . . 3 ⊢ ((𝐵 ∈ 𝑊 ∧ 𝐴 ∈ 𝑉) → (𝐵 ↑m 𝐴) = {𝑓 ∣ 𝑓:𝐴⟶𝐵}) | |
| 5 | 3, 4 | eqtr4id 2817 | . 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 1570 ∈ wcel 2147 {cab 2741 ⟶wf 6562 (class class class)co 7451 ↑m cmap 8885 Xcixp 8963 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-sep 5255 ax-nul 5266 ax-pow 5334 ax-pr 5398 ax-un 7783 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-ral 3081 df-rex 3091 df-rab 3417 df-v 3456 df-sbc 3743 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4841 df-uni 4873 df-br 5109 df-opab 5174 df-mpt 5193 df-id 5553 df-xp 5664 df-rel 5665 df-cnv 5666 df-co 5667 df-dm 5668 df-rn 5669 df-iota 6520 df-fun 6568 df-fn 6569 df-f 6570 df-fv 6574 df-ov 7454 df-oprab 7455 df-mpo 7456 df-map 8887 df-ixp 8964 |
| This theorem is used by: ixpconst 8973 mapsnf1o 9005 prdshom 17688 pwsbas 17708 frlmip 22139 pttoponconst 23971 xkoptsub 24028 xkopt 24029 tmdgsum2 24470 rrxip 25766 ovnlecvr2 47893 tmachlem-tpbase 48222 naryfvalixp 50072 |
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