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Mirrors > Home > ILE Home > Th. List > ovidig | GIF version |
Description: The value of an operation class abstraction. Compare ovidi 5897. The condition (𝑥 ∈ 𝑅 ∧ 𝑦 ∈ 𝑆) is been removed. (Contributed by Mario Carneiro, 29-Dec-2014.) |
Ref | Expression |
---|---|
ovidig.1 | ⊢ ∃*𝑧𝜑 |
ovidig.2 | ⊢ 𝐹 = {〈〈𝑥, 𝑦〉, 𝑧〉 ∣ 𝜑} |
Ref | Expression |
---|---|
ovidig | ⊢ (𝜑 → (𝑥𝐹𝑦) = 𝑧) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-ov 5785 | . 2 ⊢ (𝑥𝐹𝑦) = (𝐹‘〈𝑥, 𝑦〉) | |
2 | ovidig.1 | . . . . 5 ⊢ ∃*𝑧𝜑 | |
3 | 2 | funoprab 5879 | . . . 4 ⊢ Fun {〈〈𝑥, 𝑦〉, 𝑧〉 ∣ 𝜑} |
4 | ovidig.2 | . . . . 5 ⊢ 𝐹 = {〈〈𝑥, 𝑦〉, 𝑧〉 ∣ 𝜑} | |
5 | 4 | funeqi 5152 | . . . 4 ⊢ (Fun 𝐹 ↔ Fun {〈〈𝑥, 𝑦〉, 𝑧〉 ∣ 𝜑}) |
6 | 3, 5 | mpbir 145 | . . 3 ⊢ Fun 𝐹 |
7 | oprabid 5811 | . . . . 5 ⊢ (〈〈𝑥, 𝑦〉, 𝑧〉 ∈ {〈〈𝑥, 𝑦〉, 𝑧〉 ∣ 𝜑} ↔ 𝜑) | |
8 | 7 | biimpri 132 | . . . 4 ⊢ (𝜑 → 〈〈𝑥, 𝑦〉, 𝑧〉 ∈ {〈〈𝑥, 𝑦〉, 𝑧〉 ∣ 𝜑}) |
9 | 8, 4 | eleqtrrdi 2234 | . . 3 ⊢ (𝜑 → 〈〈𝑥, 𝑦〉, 𝑧〉 ∈ 𝐹) |
10 | funopfv 5469 | . . 3 ⊢ (Fun 𝐹 → (〈〈𝑥, 𝑦〉, 𝑧〉 ∈ 𝐹 → (𝐹‘〈𝑥, 𝑦〉) = 𝑧)) | |
11 | 6, 9, 10 | mpsyl 65 | . 2 ⊢ (𝜑 → (𝐹‘〈𝑥, 𝑦〉) = 𝑧) |
12 | 1, 11 | syl5eq 2185 | 1 ⊢ (𝜑 → (𝑥𝐹𝑦) = 𝑧) |
Colors of variables: wff set class |
Syntax hints: → wi 4 = wceq 1332 ∈ wcel 1481 ∃*wmo 2001 〈cop 3535 Fun wfun 5125 ‘cfv 5131 (class class class)co 5782 {coprab 5783 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 604 ax-in2 605 ax-io 699 ax-5 1424 ax-7 1425 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-8 1483 ax-10 1484 ax-11 1485 ax-i12 1486 ax-bndl 1487 ax-4 1488 ax-14 1493 ax-17 1507 ax-i9 1511 ax-ial 1515 ax-i5r 1516 ax-ext 2122 ax-sep 4054 ax-pow 4106 ax-pr 4139 ax-setind 4460 |
This theorem depends on definitions: df-bi 116 df-3an 965 df-tru 1335 df-fal 1338 df-nf 1438 df-sb 1737 df-eu 2003 df-mo 2004 df-clab 2127 df-cleq 2133 df-clel 2136 df-nfc 2271 df-ne 2310 df-ral 2422 df-rex 2423 df-v 2691 df-sbc 2914 df-dif 3078 df-un 3080 df-in 3082 df-ss 3089 df-pw 3517 df-sn 3538 df-pr 3539 df-op 3541 df-uni 3745 df-br 3938 df-opab 3998 df-id 4223 df-xp 4553 df-rel 4554 df-cnv 4555 df-co 4556 df-dm 4557 df-iota 5096 df-fun 5133 df-fv 5139 df-ov 5785 df-oprab 5786 |
This theorem is referenced by: ovidi 5897 |
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