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Mathbox for Jonathan Ben-Naim |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > bnj132 | Unicode version |
Description: First-order logic and set theory. (Contributed by Jonathan Ben-Naim, 3-Jun-2011.) (Proof shortened by Andrew Salmon, 26-Jun-2011.) (New usage is discouraged.) |
Ref | Expression |
---|---|
bnj132.1 |
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Ref | Expression |
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bnj132 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | bnj132.1 |
. 2
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2 | 19.37v 1918 |
. 2
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3 | 1, 2 | bitri 241 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() |
This theorem is referenced by: bnj996 29036 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-3 7 ax-mp 8 ax-gen 1552 ax-5 1563 ax-17 1623 ax-9 1662 ax-8 1683 ax-11 1757 |
This theorem depends on definitions: df-bi 178 df-an 361 df-ex 1548 df-nf 1551 |
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