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| Mirrors > Home > ILE Home > Th. List > nfov | GIF version | ||
| Description: Bound-variable hypothesis builder for operation value. (Contributed by NM, 4-May-2004.) |
| Ref | Expression |
|---|---|
| nfov.1 | ⊢ Ⅎ𝑥𝐴 |
| nfov.2 | ⊢ Ⅎ𝑥𝐹 |
| nfov.3 | ⊢ Ⅎ𝑥𝐵 |
| Ref | Expression |
|---|---|
| nfov | ⊢ Ⅎ𝑥(𝐴𝐹𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nfov.1 | . . . 4 ⊢ Ⅎ𝑥𝐴 | |
| 2 | 1 | a1i 9 | . . 3 ⊢ (⊤ → Ⅎ𝑥𝐴) |
| 3 | nfov.2 | . . . 4 ⊢ Ⅎ𝑥𝐹 | |
| 4 | 3 | a1i 9 | . . 3 ⊢ (⊤ → Ⅎ𝑥𝐹) |
| 5 | nfov.3 | . . . 4 ⊢ Ⅎ𝑥𝐵 | |
| 6 | 5 | a1i 9 | . . 3 ⊢ (⊤ → Ⅎ𝑥𝐵) |
| 7 | 2, 4, 6 | nfovd 6057 | . 2 ⊢ (⊤ → Ⅎ𝑥(𝐴𝐹𝐵)) |
| 8 | 7 | mptru 1407 | 1 ⊢ Ⅎ𝑥(𝐴𝐹𝐵) |
| Colors of variables: wff set class |
| Syntax hints: ⊤wtru 1399 Ⅎwnfc 2362 (class class class)co 6028 |
| 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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-rex 2517 df-v 2805 df-un 3205 df-sn 3679 df-pr 3680 df-op 3682 df-uni 3899 df-br 4094 df-iota 5293 df-fv 5341 df-ov 6031 |
| This theorem is referenced by: csbov123g 6067 ovmpos 6155 ov2gf 6156 ovmpodxf 6157 ovmpodv2 6165 ovi3 6169 nfof 6250 offval2 6260 caucvgprprlemaddq 7971 nfseq 10765 fsumadd 12030 mertenslem2 12160 fprodrec 12253 fproddivapf 12255 oddpwdclemdvds 12805 oddpwdclemndvds 12806 pcmpt 12979 pcmptdvds 12981 cnmpt2t 15087 cnmptcom 15092 fsumcncntop 15361 dvmptfsum 15519 elplyd 15535 |
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