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Mirrors > Home > ILE Home > Th. List > ax-17 | Unicode version |
Description: Axiom to quantify a
variable over a formula in which it does not occur.
Axiom C5 in [Megill] p. 444 (p. 11 of the
preprint). Also appears as
Axiom B6 (p. 75) of system S2 of [Tarski]
p. 77 and Axiom C5-1 of
[Monk2] p. 113.
(Contributed by NM, 5-Aug-1993.) |
Ref | Expression |
---|---|
ax-17 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | wph | . 2 | |
2 | vx | . . 3 | |
3 | 1, 2 | wal 1340 | . 2 |
4 | 1, 3 | wi 4 | 1 |
Colors of variables: wff set class |
This axiom is referenced by: a17d 1514 nfv 1515 exlimiv 1585 equid 1688 ax16 1800 dvelimfALT2 1804 exlimdv 1806 ax11a2 1808 albidv 1811 exbidv 1812 ax11v 1814 ax11ev 1815 ax16i 1845 ax16ALT 1846 equvin 1850 19.9v 1858 19.21v 1860 alrimiv 1861 alrimdv 1863 alimdv 1866 eximdv 1867 19.23v 1870 pm11.53 1882 19.27v 1886 19.28v 1887 19.41v 1889 19.42v 1893 cbvalv 1904 cbvexv 1905 cbvexdh 1913 nexdv 1923 sbhb 1927 hbsbv 1928 sbco2vh 1932 nfsb 1933 equsb3lem 1937 equsb3 1938 sbn 1939 sbim 1940 sbor 1941 sban 1942 sbco3 1961 nfsbt 1963 sb9 1966 sbcom2v2 1973 sbcom2 1974 dfsb7 1978 sbid2v 1983 sbelx 1984 sbal 1987 sbal1 1989 sbex 1991 exsb 1995 dvelimALT 1997 dvelim 2004 dvelimor 2005 euf 2018 sb8euh 2036 euorv 2040 euex 2043 euanv 2070 mo4f 2073 moim 2077 moimv 2079 moanim 2087 mopick 2091 2eu4 2106 cleljust 2141 elsb3 2142 elsb4 2143 dveel1 2144 dveel2 2145 cleqh 2264 abeq2 2273 mpteq12 4059 bj-ex 13478 bj-inex 13624 |
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