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| Mirrors > Home > MPE Home > Th. List > ftp | Structured version Visualization version GIF version | ||
| Description: A function with a domain of three elements. (Contributed by Stefan O'Rear, 17-Oct-2014.) (Proof shortened by Alexander van der Vekens, 23-Jan-2018.) |
| Ref | Expression |
|---|---|
| ftp.a | ⊢ 𝐴 ∈ V |
| ftp.b | ⊢ 𝐵 ∈ V |
| ftp.c | ⊢ 𝐶 ∈ V |
| ftp.d | ⊢ 𝑋 ∈ V |
| ftp.e | ⊢ 𝑌 ∈ V |
| ftp.f | ⊢ 𝑍 ∈ V |
| ftp.g | ⊢ 𝐴 ≠ 𝐵 |
| ftp.h | ⊢ 𝐴 ≠ 𝐶 |
| ftp.i | ⊢ 𝐵 ≠ 𝐶 |
| Ref | Expression |
|---|---|
| ftp | ⊢ {〈𝐴, 𝑋〉, 〈𝐵, 𝑌〉, 〈𝐶, 𝑍〉}:{𝐴, 𝐵, 𝐶}⟶{𝑋, 𝑌, 𝑍} |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ftp.a | . . 3 ⊢ 𝐴 ∈ V | |
| 2 | ftp.b | . . 3 ⊢ 𝐵 ∈ V | |
| 3 | ftp.c | . . 3 ⊢ 𝐶 ∈ V | |
| 4 | 1, 2, 3 | 3pm3.2i 1358 | . 2 ⊢ (𝐴 ∈ V ∧ 𝐵 ∈ V ∧ 𝐶 ∈ V) |
| 5 | ftp.d | . . 3 ⊢ 𝑋 ∈ V | |
| 6 | ftp.e | . . 3 ⊢ 𝑌 ∈ V | |
| 7 | ftp.f | . . 3 ⊢ 𝑍 ∈ V | |
| 8 | 5, 6, 7 | 3pm3.2i 1358 | . 2 ⊢ (𝑋 ∈ V ∧ 𝑌 ∈ V ∧ 𝑍 ∈ V) |
| 9 | ftp.g | . . 3 ⊢ 𝐴 ≠ 𝐵 | |
| 10 | ftp.h | . . 3 ⊢ 𝐴 ≠ 𝐶 | |
| 11 | ftp.i | . . 3 ⊢ 𝐵 ≠ 𝐶 | |
| 12 | 9, 10, 11 | 3pm3.2i 1358 | . 2 ⊢ (𝐴 ≠ 𝐵 ∧ 𝐴 ≠ 𝐶 ∧ 𝐵 ≠ 𝐶) |
| 13 | ftpg 7192 | . 2 ⊢ (((𝐴 ∈ V ∧ 𝐵 ∈ V ∧ 𝐶 ∈ V) ∧ (𝑋 ∈ V ∧ 𝑌 ∈ V ∧ 𝑍 ∈ V) ∧ (𝐴 ≠ 𝐵 ∧ 𝐴 ≠ 𝐶 ∧ 𝐵 ≠ 𝐶)) → {〈𝐴, 𝑋〉, 〈𝐵, 𝑌〉, 〈𝐶, 𝑍〉}:{𝐴, 𝐵, 𝐶}⟶{𝑋, 𝑌, 𝑍}) | |
| 14 | 4, 8, 12, 13 | mp3an 1491 | 1 ⊢ {〈𝐴, 𝑋〉, 〈𝐵, 𝑌〉, 〈𝐶, 𝑍〉}:{𝐴, 𝐵, 𝐶}⟶{𝑋, 𝑌, 𝑍} |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∧ w3a 1103 ∈ wcel 2147 ≠ wne 2959 Vcvv 3454 {ctp 4592 〈cop 4840 ⟶wf 6562 |
| 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-12 2216 ax-ext 2735 ax-sep 5255 ax-nul 5266 ax-pr 5398 |
| 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-sb 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-ne 2960 df-ral 3081 df-rex 3091 df-reu 3370 df-rab 3417 df-v 3456 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-sn 4589 df-pr 4591 df-tp 4593 df-op 4841 df-br 5109 df-opab 5174 df-id 5553 df-xp 5664 df-rel 5665 df-cnv 5666 df-co 5667 df-dm 5668 df-rn 5669 df-fun 6568 df-fn 6569 df-f 6570 df-f1 6571 df-fo 6572 df-f1o 6573 |
| This theorem is used by: rabren3dioph 44088 nnsum4primesodd 49167 nnsum4primesoddALTV 49168 |
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