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| Mirrors > Home > ILE Home > Th. List > ovidig | GIF version | ||
| Description: The value of an operation class abstraction. Compare ovidi 6139. 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 6020 | . 2 ⊢ (𝑥𝐹𝑦) = (𝐹‘〈𝑥, 𝑦〉) | |
| 2 | ovidig.1 | . . . . 5 ⊢ ∃*𝑧𝜑 | |
| 3 | 2 | funoprab 6120 | . . . 4 ⊢ Fun {〈〈𝑥, 𝑦〉, 𝑧〉 ∣ 𝜑} |
| 4 | ovidig.2 | . . . . 5 ⊢ 𝐹 = {〈〈𝑥, 𝑦〉, 𝑧〉 ∣ 𝜑} | |
| 5 | 4 | funeqi 5347 | . . . 4 ⊢ (Fun 𝐹 ↔ Fun {〈〈𝑥, 𝑦〉, 𝑧〉 ∣ 𝜑}) |
| 6 | 3, 5 | mpbir 146 | . . 3 ⊢ Fun 𝐹 |
| 7 | oprabid 6049 | . . . . 5 ⊢ (〈〈𝑥, 𝑦〉, 𝑧〉 ∈ {〈〈𝑥, 𝑦〉, 𝑧〉 ∣ 𝜑} ↔ 𝜑) | |
| 8 | 7 | biimpri 133 | . . . 4 ⊢ (𝜑 → 〈〈𝑥, 𝑦〉, 𝑧〉 ∈ {〈〈𝑥, 𝑦〉, 𝑧〉 ∣ 𝜑}) |
| 9 | 8, 4 | eleqtrrdi 2325 | . . 3 ⊢ (𝜑 → 〈〈𝑥, 𝑦〉, 𝑧〉 ∈ 𝐹) |
| 10 | funopfv 5683 | . . 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 | eqtrid 2276 | 1 ⊢ (𝜑 → (𝑥𝐹𝑦) = 𝑧) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1397 ∃*wmo 2080 ∈ wcel 2202 〈cop 3672 Fun wfun 5320 ‘cfv 5326 (class class class)co 6017 {coprab 6018 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 619 ax-in2 620 ax-io 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-14 2205 ax-ext 2213 ax-sep 4207 ax-pow 4264 ax-pr 4299 ax-setind 4635 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-fal 1403 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ne 2403 df-ral 2515 df-rex 2516 df-v 2804 df-sbc 3032 df-dif 3202 df-un 3204 df-in 3206 df-ss 3213 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-br 4089 df-opab 4151 df-id 4390 df-xp 4731 df-rel 4732 df-cnv 4733 df-co 4734 df-dm 4735 df-iota 5286 df-fun 5328 df-fv 5334 df-ov 6020 df-oprab 6021 |
| This theorem is referenced by: ovidi 6139 |
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