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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 7601 | . . . 4 ⊢ ∅ ∈ ω | |
2 | 1 | a1i 11 | . . 3 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → ∅ ∈ ω) |
3 | 1onn 8265 | . . . 4 ⊢ 1o ∈ ω | |
4 | 3 | a1i 11 | . . 3 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → 1o ∈ ω) |
5 | simpl 485 | . . 3 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → 𝐴 ∈ 𝑉) | |
6 | simpr 487 | . . 3 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → 𝐵 ∈ 𝑊) | |
7 | 1n0 8119 | . . . . 5 ⊢ 1o ≠ ∅ | |
8 | 7 | necomi 3070 | . . . 4 ⊢ ∅ ≠ 1o |
9 | 8 | a1i 11 | . . 3 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → ∅ ≠ 1o) |
10 | fnprg 6413 | . . 3 ⊢ (((∅ ∈ ω ∧ 1o ∈ ω) ∧ (𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) ∧ ∅ ≠ 1o) → {〈∅, 𝐴〉, 〈1o, 𝐵〉} Fn {∅, 1o}) | |
11 | 2, 4, 5, 6, 9, 10 | syl221anc 1377 | . 2 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → {〈∅, 𝐴〉, 〈1o, 𝐵〉} Fn {∅, 1o}) |
12 | df2o3 8117 | . . 3 ⊢ 2o = {∅, 1o} | |
13 | 12 | fneq2i 6451 | . 2 ⊢ ({〈∅, 𝐴〉, 〈1o, 𝐵〉} Fn 2o ↔ {〈∅, 𝐴〉, 〈1o, 𝐵〉} Fn {∅, 1o}) |
14 | 11, 13 | sylibr 236 | 1 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → {〈∅, 𝐴〉, 〈1o, 𝐵〉} Fn 2o) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 398 ∈ wcel 2114 ≠ wne 3016 ∅c0 4291 {cpr 4569 〈cop 4573 Fn wfn 6350 ωcom 7580 1oc1o 8095 2oc2o 8096 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2793 ax-sep 5203 ax-nul 5210 ax-pr 5330 ax-un 7461 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-ral 3143 df-rex 3144 df-rab 3147 df-v 3496 df-sbc 3773 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-pss 3954 df-nul 4292 df-if 4468 df-pw 4541 df-sn 4568 df-pr 4570 df-tp 4572 df-op 4574 df-uni 4839 df-br 5067 df-opab 5129 df-tr 5173 df-id 5460 df-eprel 5465 df-po 5474 df-so 5475 df-fr 5514 df-we 5516 df-xp 5561 df-rel 5562 df-cnv 5563 df-co 5564 df-dm 5565 df-ord 6194 df-on 6195 df-lim 6196 df-suc 6197 df-fun 6357 df-fn 6358 df-om 7581 df-1o 8102 df-2o 8103 |
This theorem is referenced by: fnpr2ob 16831 xpsfeq 16836 xpsfrnel2 16837 xpsrnbas 16844 xpsaddlem 16846 xpsvsca 16850 xpsle 16852 xpstopnlem1 22417 xpstopnlem2 22419 xpsxmetlem 22989 xpsdsval 22991 xpsmet 22992 |
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