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| Mirrors > Home > ILE Home > Th. List > nfri | GIF version | ||
| Description: Consequence of the definition of not-free. (Contributed by Mario Carneiro, 11-Aug-2016.) |
| Ref | Expression |
|---|---|
| nfri.1 | ⊢ Ⅎ𝑥𝜑 |
| Ref | Expression |
|---|---|
| nfri | ⊢ (𝜑 → ∀𝑥𝜑) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nfri.1 | . 2 ⊢ Ⅎ𝑥𝜑 | |
| 2 | nfr 1566 | . 2 ⊢ (Ⅎ𝑥𝜑 → (𝜑 → ∀𝑥𝜑)) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ (𝜑 → ∀𝑥𝜑) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∀wal 1395 Ⅎwnf 1508 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-4 1558 |
| This theorem depends on definitions: df-bi 117 df-nf 1509 |
| This theorem is referenced by: alimd 1569 alrimi 1570 nfd 1571 nfrimi 1573 nfbidf 1587 19.3 1602 nfan1 1612 nfim1 1619 nfor 1622 nfimd 1633 exlimi 1642 exlimd 1645 eximd 1660 albid 1663 exbid 1664 nfex 1685 19.9 1692 nf2 1716 nf3 1717 spim 1786 cbv2 1797 cbvexv1 1800 cbval 1802 cbvex 1804 nfald 1808 nfexd 1809 sbf 1825 nfs1f 1828 sbied 1836 sbie 1839 nfs1 1857 equs5or 1878 sb4or 1881 sbid2 1898 cbvexd 1976 hbsb 2002 sbco2yz 2016 sbco2 2018 sbco3v 2022 sbcomxyyz 2025 nfsbd 2030 hbeu 2100 mo23 2121 mor 2122 eu2 2124 eu3 2126 mo2r 2132 mo3 2134 mo2dc 2135 moexexdc 2164 nfsab 2223 nfcrii 2367 bj-sbime 16369 |
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