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| Mirrors > Home > ILE Home > Th. List > nfbr | GIF version | ||
| Description: Bound-variable hypothesis builder for binary relation. (Contributed by NM, 1-Sep-1999.) (Revised by Mario Carneiro, 14-Oct-2016.) |
| Ref | Expression |
|---|---|
| nfbr.1 | ⊢ Ⅎ𝑥𝐴 |
| nfbr.2 | ⊢ Ⅎ𝑥𝑅 |
| nfbr.3 | ⊢ Ⅎ𝑥𝐵 |
| Ref | Expression |
|---|---|
| nfbr | ⊢ Ⅎ𝑥 𝐴𝑅𝐵 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nfbr.1 | . . . 4 ⊢ Ⅎ𝑥𝐴 | |
| 2 | 1 | a1i 9 | . . 3 ⊢ (⊤ → Ⅎ𝑥𝐴) |
| 3 | nfbr.2 | . . . 4 ⊢ Ⅎ𝑥𝑅 | |
| 4 | 3 | a1i 9 | . . 3 ⊢ (⊤ → Ⅎ𝑥𝑅) |
| 5 | nfbr.3 | . . . 4 ⊢ Ⅎ𝑥𝐵 | |
| 6 | 5 | a1i 9 | . . 3 ⊢ (⊤ → Ⅎ𝑥𝐵) |
| 7 | 2, 4, 6 | nfbrd 4129 | . 2 ⊢ (⊤ → Ⅎ𝑥 𝐴𝑅𝐵) |
| 8 | 7 | mptru 1404 | 1 ⊢ Ⅎ𝑥 𝐴𝑅𝐵 |
| Colors of variables: wff set class |
| Syntax hints: ⊤wtru 1396 Ⅎwnf 1506 Ⅎwnfc 2359 class class class wbr 4083 |
| 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-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-ext 2211 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-nf 1507 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-v 2801 df-un 3201 df-sn 3672 df-pr 3673 df-op 3675 df-br 4084 |
| This theorem is referenced by: sbcbrg 4138 nfpo 4392 nfso 4393 pofun 4403 nfse 4432 nffrfor 4439 nfwe 4446 nfco 4887 nfcnv 4901 dfdmf 4916 dfrnf 4965 nfdm 4968 dffun6f 5331 dffun4f 5334 nffv 5639 funfvdm2f 5701 fvmptss2 5711 f1ompt 5788 fmptco 5803 nfiso 5936 nfofr 6231 ofrfval2 6241 tposoprab 6432 xpcomco 6993 nfsup 7170 caucvgprprlemaddq 7906 lble 9105 nfsum1 11883 nfsum 11884 fsum00 11989 mertenslem2 12063 nfcprod1 12081 nfcprod 12082 fprodap0 12148 fprodrec 12156 fproddivapf 12158 fprodap0f 12163 fprodle 12167 oddpwdclemdvds 12708 oddpwdclemndvds 12709 |
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