Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
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 7710 | . . . 4 ⊢ ∅ ∈ ω | |
2 | 1 | a1i 11 | . . 3 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → ∅ ∈ ω) |
3 | 1onn 8432 | . . . 4 ⊢ 1o ∈ ω | |
4 | 3 | a1i 11 | . . 3 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → 1o ∈ ω) |
5 | simpl 482 | . . 3 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → 𝐴 ∈ 𝑉) | |
6 | simpr 484 | . . 3 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → 𝐵 ∈ 𝑊) | |
7 | 1n0 8286 | . . . . 5 ⊢ 1o ≠ ∅ | |
8 | 7 | necomi 2997 | . . . 4 ⊢ ∅ ≠ 1o |
9 | 8 | a1i 11 | . . 3 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → ∅ ≠ 1o) |
10 | fnprg 6477 | . . 3 ⊢ (((∅ ∈ ω ∧ 1o ∈ ω) ∧ (𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) ∧ ∅ ≠ 1o) → {〈∅, 𝐴〉, 〈1o, 𝐵〉} Fn {∅, 1o}) | |
11 | 2, 4, 5, 6, 9, 10 | syl221anc 1379 | . 2 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → {〈∅, 𝐴〉, 〈1o, 𝐵〉} Fn {∅, 1o}) |
12 | df2o3 8282 | . . 3 ⊢ 2o = {∅, 1o} | |
13 | 12 | fneq2i 6515 | . 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 395 ∈ wcel 2108 ≠ wne 2942 ∅c0 4253 {cpr 4560 〈cop 4564 Fn wfn 6413 ωcom 7687 1oc1o 8260 2oc2o 8261 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-sep 5218 ax-nul 5225 ax-pr 5347 ax-un 7566 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-ral 3068 df-rex 3069 df-rab 3072 df-v 3424 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3902 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-tp 4563 df-op 4565 df-uni 4837 df-br 5071 df-opab 5133 df-tr 5188 df-id 5480 df-eprel 5486 df-po 5494 df-so 5495 df-fr 5535 df-we 5537 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-ord 6254 df-on 6255 df-lim 6256 df-suc 6257 df-fun 6420 df-fn 6421 df-om 7688 df-1o 8267 df-2o 8268 |
This theorem is referenced by: fnpr2ob 17186 xpsfeq 17191 xpsfrnel2 17192 xpsrnbas 17199 xpsaddlem 17201 xpsvsca 17205 xpsle 17207 xpstopnlem1 22868 xpstopnlem2 22870 xpsxmetlem 23440 xpsdsval 23442 xpsmet 23443 |
Copyright terms: Public domain | W3C validator |