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| Mirrors > Home > ILE Home > Th. List > nfop | Unicode version | ||
| Description: Bound-variable hypothesis builder for ordered pairs. (Contributed by NM, 14-Nov-1995.) |
| Ref | Expression |
|---|---|
| nfop.1 |
|
| nfop.2 |
|
| Ref | Expression |
|---|---|
| nfop |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-op 3718 |
. 2
| |
| 2 | nfop.1 |
. . . . 5
| |
| 3 | 2 | nfel1 2403 |
. . . 4
|
| 4 | nfop.2 |
. . . . 5
| |
| 5 | 4 | nfel1 2403 |
. . . 4
|
| 6 | 2 | nfsn 3769 |
. . . . . 6
|
| 7 | 2, 4 | nfpr 3759 |
. . . . . 6
|
| 8 | 6, 7 | nfpr 3759 |
. . . . 5
|
| 9 | 8 | nfcri 2386 |
. . . 4
|
| 10 | 3, 5, 9 | nf3an 1619 |
. . 3
|
| 11 | 10 | nfab 2397 |
. 2
|
| 12 | 1, 11 | nfcxfr 2389 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-v 2823 df-un 3224 df-sn 3715 df-pr 3716 df-op 3718 |
| This theorem is used by: nfopd 3921 moop2 4392 fliftfuns 6004 dfmpo 6459 qliftfuns 6893 xpf1o 7144 caucvgprprlemaddq 8075 nfseq 10894 txcnp 15372 cnmpt1t 15386 cnmpt2t 15394 |
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