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| Mirrors > Home > MPE Home > Th. List > brab | Structured version Visualization version GIF version | ||
| Description: The law of concretion for a binary relation. (Contributed by NM, 16-Aug-1999.) |
| Ref | Expression |
|---|---|
| opelopab.1 | ⊢ 𝐴 ∈ V |
| opelopab.2 | ⊢ 𝐵 ∈ V |
| opelopab.3 | ⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜓)) |
| opelopab.4 | ⊢ (𝑦 = 𝐵 → (𝜓 ↔ 𝜒)) |
| brab.5 | ⊢ 𝑅 = {〈𝑥, 𝑦〉 ∣ 𝜑} |
| Ref | Expression |
|---|---|
| brab | ⊢ (𝐴𝑅𝐵 ↔ 𝜒) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | opelopab.1 | . 2 ⊢ 𝐴 ∈ V | |
| 2 | opelopab.2 | . 2 ⊢ 𝐵 ∈ V | |
| 3 | opelopab.3 | . . 3 ⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜓)) | |
| 4 | opelopab.4 | . . 3 ⊢ (𝑦 = 𝐵 → (𝜓 ↔ 𝜒)) | |
| 5 | brab.5 | . . 3 ⊢ 𝑅 = {〈𝑥, 𝑦〉 ∣ 𝜑} | |
| 6 | 3, 4, 5 | brabg 5529 | . 2 ⊢ ((𝐴 ∈ V ∧ 𝐵 ∈ V) → (𝐴𝑅𝐵 ↔ 𝜒)) |
| 7 | 1, 2, 6 | mp2an 705 | 1 ⊢ (𝐴𝑅𝐵 ↔ 𝜒) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 = wceq 1570 ∈ wcel 2146 Vcvv 3458 class class class wbr 5114 {copab 5178 |
| 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 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-ext 2738 ax-sep 5262 ax-pr 5409 |
| 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 2100 df-clab 2745 df-cleq 2758 df-clel 2841 df-rab 3420 df-v 3460 df-dif 3911 df-un 3913 df-in 3915 df-ss 3925 df-nul 4290 df-if 4493 df-sn 4595 df-pr 4597 df-op 4601 df-br 5115 df-opab 5179 |
| This theorem is used by: opbrop 5764 f1oweALT 7978 frxp 8131 fnwelem 8136 xpord2lem 8147 xpord3lem 8154 poseq 8163 dftpos4 8250 dfac3 10124 axdc2lem 10450 brdom7disj 10533 brdom6disj 10534 ordpipq 10945 ltresr 11143 shftfn 15136 2shfti 15143 ishpg 29078 brcgr 29287 ex-opab 30820 br8d 32990 fineqvnttrclselem3 35560 fineqvnttrclse 35561 vonf1wev 35616 vonf1owevOLD 35618 vonf1osev 35620 br8 36269 br6 36270 br4 36271 dfbigcup2 36410 brsegle 36621 heiborlem2 38504 nthrucw 47648 |
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