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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 1567 | . 2 ⊢ (Ⅎ𝑥𝜑 → (𝜑 → ∀𝑥𝜑)) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ (𝜑 → ∀𝑥𝜑) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∀wal 1396 Ⅎwnf 1509 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-4 1559 |
| This theorem depends on definitions: df-bi 117 df-nf 1510 |
| This theorem is referenced by: alimd 1570 alrimi 1571 nfd 1572 nfrimi 1574 nfbidf 1588 19.3 1603 nfan1 1613 nfim1 1620 nfor 1623 nfimd 1634 exlimi 1643 exlimd 1646 eximd 1661 albid 1664 exbid 1665 nfex 1686 19.9 1693 nf2 1716 nf3 1717 spim 1787 cbv2 1798 cbvexv1 1801 cbval 1803 cbvex 1805 nfald 1809 nfexd 1810 sbf 1826 nfs1f 1829 sbied 1837 sbie 1840 nfs1 1858 equs5or 1879 sb4or 1882 sbid2 1899 cbvexd 1979 hbsb 2005 sbco2yz 2019 sbco2 2021 sbco3v 2025 sbcomxyyz 2028 nfsbd 2033 hbeu 2103 mo23 2124 mor 2125 eu2 2127 eu3 2129 mo2r 2135 mo3 2137 mo2dc 2138 moexexdc 2167 nfsab 2226 nfcrii 2379 bj-sbime 16671 |
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