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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 1352 | . 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 1352 | . 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 1352 | . 2 ⊢ (𝐴 ≠ 𝐵 ∧ 𝐴 ≠ 𝐶 ∧ 𝐵 ≠ 𝐶) |
| 13 | ftpg 7135 | . 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 1481 | 1 ⊢ {〈𝐴, 𝑋〉, 〈𝐵, 𝑌〉, 〈𝐶, 𝑍〉}:{𝐴, 𝐵, 𝐶}⟶{𝑋, 𝑌, 𝑍} |
| Colors of variables: wff setvar class |
| Syntax hints: ∧ w3a 1097 ∈ wcel 2141 ≠ wne 2956 Vcvv 3453 {ctp 4585 〈cop 4587 ⟶wf 6513 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-12 2211 ax-ext 2733 ax-sep 5245 ax-nul 5255 ax-pr 5389 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-ne 2957 df-ral 3076 df-rex 3086 df-reu 3367 df-rab 3414 df-v 3455 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4480 df-sn 4582 df-pr 4584 df-tp 4586 df-op 4588 df-br 5100 df-opab 5162 df-id 5540 df-xp 5651 df-rel 5652 df-cnv 5653 df-co 5654 df-dm 5655 df-rn 5656 df-fun 6519 df-fn 6520 df-f 6521 df-f1 6522 df-fo 6523 df-f1o 6524 |
| This theorem is referenced by: rabren3dioph 43356 nnsum4primesodd 48382 nnsum4primesoddALTV 48383 |
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