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| Mirrors > Home > NFE 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 10 | . . 3 ⊢ ( ⊤ → ℲxA) |
| 3 | nfbr.2 | . . . 4 ⊢ ℲxR | |
| 4 | 3 | a1i 10 | . . 3 ⊢ ( ⊤ → ℲxR) |
| 5 | nfbr.3 | . . . 4 ⊢ ℲxB | |
| 6 | 5 | a1i 10 | . . 3 ⊢ ( ⊤ → ℲxB) |
| 7 | 2, 4, 6 | nfbrd 4683 | . 2 ⊢ ( ⊤ → Ⅎx ARB) |
| 8 | 7 | trud 1323 | 1 ⊢ Ⅎx ARB |
| Colors of variables: wff setvar class |
| Syntax hints: ⊤ wtru 1316 Ⅎwnf 1544 Ⅎwnfc 2477 class class class wbr 4640 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1546 ax-5 1557 ax-17 1616 ax-9 1654 ax-8 1675 ax-6 1729 ax-7 1734 ax-11 1746 ax-12 1925 ax-ext 2334 ax-nin 4079 ax-xp 4080 ax-cnv 4081 ax-1c 4082 ax-sset 4083 ax-si 4084 ax-ins2 4085 ax-ins3 4086 ax-typlower 4087 ax-sn 4088 |
| This theorem depends on definitions: df-bi 177 df-or 359 df-an 360 df-3an 936 df-nan 1288 df-tru 1319 df-ex 1542 df-nf 1545 df-sb 1649 df-clab 2340 df-cleq 2346 df-clel 2349 df-nfc 2479 df-ne 2519 df-ral 2620 df-rex 2621 df-v 2862 df-sbc 3048 df-nin 3212 df-compl 3213 df-in 3214 df-un 3215 df-dif 3216 df-symdif 3217 df-ss 3260 df-nul 3552 df-if 3664 df-pw 3725 df-sn 3742 df-pr 3743 df-uni 3893 df-int 3928 df-opk 4059 df-1c 4137 df-pw1 4138 df-uni1 4139 df-xpk 4186 df-cnvk 4187 df-ins2k 4188 df-ins3k 4189 df-imak 4190 df-cok 4191 df-p6 4192 df-sik 4193 df-ssetk 4194 df-imagek 4195 df-idk 4196 df-addc 4379 df-nnc 4380 df-phi 4566 df-op 4567 df-br 4641 |
| This theorem is referenced by: sbcbrg 4686 nfco 4883 nfcnv 4892 dfdmf 4906 nfima 4954 dfrnf 4963 dffun6f 5124 nffv 5335 funfv2f 5378 nfiso 5488 |
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