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Mirrors > Home > NFE Home > Th. List > eubidv | Unicode version |
Description: Formula-building rule for uniqueness quantifier (deduction rule). (Contributed by NM, 9-Jul-1994.) |
Ref | Expression |
---|---|
eubidv.1 |
Ref | Expression |
---|---|
eubidv |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nfv 1619 | . 2 | |
2 | eubidv.1 | . 2 | |
3 | 1, 2 | eubid 2211 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wb 176 weu 2204 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1546 ax-5 1557 ax-17 1616 ax-9 1654 ax-8 1675 ax-11 1746 |
This theorem depends on definitions: df-bi 177 df-ex 1542 df-nf 1545 df-eu 2208 |
This theorem is referenced by: eubii 2213 eueq2 3010 eueq3 3011 moeq3 3013 fneu 5187 feu 5242 dff4 5421 scancan 6331 |
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