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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 1571 | . 2 ⊢ (Ⅎ𝑥𝜑 → (𝜑 → ∀𝑥𝜑)) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ (𝜑 → ∀𝑥𝜑) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∀wal 1400 Ⅎwnf 1513 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-4 1563 |
| This theorem depends on definitions: df-bi 117 df-nf 1514 |
| This theorem is referenced by: alimd 1574 alrimi 1575 nfd 1576 nfrimi 1578 nfbidf 1592 19.3 1607 nfan1 1617 nfim1 1624 nfor 1627 nfimd 1638 exlimi 1647 exlimd 1650 eximd 1665 albid 1668 exbid 1669 nfex 1690 19.9 1697 nf2 1720 nf3 1721 spim 1791 cbv2 1802 cbvexv1 1805 cbval 1807 cbvex 1809 nfald 1813 nfexd 1814 sbf 1830 nfs1f 1833 sbied 1841 sbie 1844 nfs1 1862 equs5or 1883 sb4or 1886 sbid2 1903 cbvexd 1983 hbsb 2009 sbco2yz 2023 sbco2 2025 sbco3v 2029 sbcomxyyz 2032 nfsbd 2037 hbeu 2107 mo23 2128 mor 2129 eu2 2131 eu3 2133 mo2r 2139 mo3 2141 mo2dc 2142 moexexdc 2171 nfsab 2230 nfcrii 2385 bj-sbime 16715 |
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