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Mirrors > Home > MPE Home > Th. List > Mathboxes > bj-exalbial | Structured version Visualization version Unicode version |
Description: Adding a second quantifier is a tranparent operation, ( case). (Contributed by BJ, 20-Oct-2019.) |
Ref | Expression |
---|---|
bj-exalbial |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nfa1 2028 | . 2 | |
2 | 1 | 19.9 2072 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wb 196 wal 1481 wex 1704 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-10 2019 ax-12 2047 |
This theorem depends on definitions: df-bi 197 df-or 385 df-ex 1705 df-nf 1710 |
This theorem is referenced by: (None) |
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