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Mirrors > Home > MPE Home > Th. List > fnpr2o | Structured version Visualization version GIF version |
Description: Function with a domain of 2o. (Contributed by Jim Kingdon, 25-Sep-2023.) |
Ref | Expression |
---|---|
fnpr2o | ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → {〈∅, 𝐴〉, 〈1o, 𝐵〉} Fn 2o) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | peano1 7735 | . . . 4 ⊢ ∅ ∈ ω | |
2 | 1 | a1i 11 | . . 3 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → ∅ ∈ ω) |
3 | 1onn 8470 | . . . 4 ⊢ 1o ∈ ω | |
4 | 3 | a1i 11 | . . 3 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → 1o ∈ ω) |
5 | simpl 483 | . . 3 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → 𝐴 ∈ 𝑉) | |
6 | simpr 485 | . . 3 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → 𝐵 ∈ 𝑊) | |
7 | 1n0 8318 | . . . . 5 ⊢ 1o ≠ ∅ | |
8 | 7 | necomi 2998 | . . . 4 ⊢ ∅ ≠ 1o |
9 | 8 | a1i 11 | . . 3 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → ∅ ≠ 1o) |
10 | fnprg 6493 | . . 3 ⊢ (((∅ ∈ ω ∧ 1o ∈ ω) ∧ (𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) ∧ ∅ ≠ 1o) → {〈∅, 𝐴〉, 〈1o, 𝐵〉} Fn {∅, 1o}) | |
11 | 2, 4, 5, 6, 9, 10 | syl221anc 1380 | . 2 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → {〈∅, 𝐴〉, 〈1o, 𝐵〉} Fn {∅, 1o}) |
12 | df2o3 8305 | . . 3 ⊢ 2o = {∅, 1o} | |
13 | 12 | fneq2i 6531 | . 2 ⊢ ({〈∅, 𝐴〉, 〈1o, 𝐵〉} Fn 2o ↔ {〈∅, 𝐴〉, 〈1o, 𝐵〉} Fn {∅, 1o}) |
14 | 11, 13 | sylibr 233 | 1 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → {〈∅, 𝐴〉, 〈1o, 𝐵〉} Fn 2o) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 396 ∈ wcel 2106 ≠ wne 2943 ∅c0 4256 {cpr 4563 〈cop 4567 Fn wfn 6428 ωcom 7712 1oc1o 8290 2oc2o 8291 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-sep 5223 ax-nul 5230 ax-pr 5352 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-ral 3069 df-rex 3070 df-rab 3073 df-v 3434 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-pss 3906 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4840 df-br 5075 df-opab 5137 df-tr 5192 df-id 5489 df-eprel 5495 df-po 5503 df-so 5504 df-fr 5544 df-we 5546 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-ord 6269 df-on 6270 df-lim 6271 df-suc 6272 df-fun 6435 df-fn 6436 df-om 7713 df-1o 8297 df-2o 8298 |
This theorem is referenced by: fnpr2ob 17269 xpsfeq 17274 xpsfrnel2 17275 xpsrnbas 17282 xpsaddlem 17284 xpsvsca 17288 xpsle 17290 xpstopnlem1 22960 xpstopnlem2 22962 xpsxmetlem 23532 xpsdsval 23534 xpsmet 23535 |
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