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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 4132 | . 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 4086 |
| 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 2802 df-un 3202 df-sn 3673 df-pr 3674 df-op 3676 df-br 4087 |
| This theorem is referenced by: sbcbrg 4141 nfpo 4396 nfso 4397 pofun 4407 nfse 4436 nffrfor 4443 nfwe 4450 nfco 4893 nfcnv 4907 dfdmf 4922 dfrnf 4971 nfdm 4974 dffun6f 5337 dffun4f 5340 nffv 5645 funfvdm2f 5707 fvmptss2 5717 f1ompt 5794 fmptco 5809 nfiso 5942 nfofr 6237 ofrfval2 6247 tposoprab 6441 modom 6989 xpcomco 7005 nfsup 7182 caucvgprprlemaddq 7918 lble 9117 nfsum1 11907 nfsum 11908 fsum00 12013 mertenslem2 12087 nfcprod1 12105 nfcprod 12106 fprodap0 12172 fprodrec 12180 fproddivapf 12182 fprodap0f 12187 fprodle 12191 oddpwdclemdvds 12732 oddpwdclemndvds 12733 |
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