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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 6046 | . 2 ⊢ (⊤ → Ⅎ𝑥(𝐴𝐹𝐵)) |
| 8 | 7 | mptru 1406 | 1 ⊢ Ⅎ𝑥(𝐴𝐹𝐵) |
| Colors of variables: wff set class |
| Syntax hints: ⊤wtru 1398 Ⅎwnfc 2361 (class class class)co 6017 |
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-rex 2516 df-v 2804 df-un 3204 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-br 4089 df-iota 5286 df-fv 5334 df-ov 6020 |
| This theorem is referenced by: csbov123g 6056 ovmpos 6144 ov2gf 6145 ovmpodxf 6146 ovmpodv2 6154 ovi3 6158 nfof 6240 offval2 6250 caucvgprprlemaddq 7927 nfseq 10718 fsumadd 11966 mertenslem2 12096 fprodrec 12189 fproddivapf 12191 oddpwdclemdvds 12741 oddpwdclemndvds 12742 pcmpt 12915 pcmptdvds 12917 cnmpt2t 15016 cnmptcom 15021 fsumcncntop 15290 dvmptfsum 15448 elplyd 15464 |
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