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Mirrors > Home > NFE Home > Th. List > hb3anOLD | Unicode version |
Description: Obsolete proof of hb3an 1830 as of 2-Jan-2018. (Contributed by NM, 14-Sep-2003.) (Proof modification is discouraged.) (New usage is discouraged.) |
Ref | Expression |
---|---|
hb.1 |
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hb.2 |
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hb.3 |
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Ref | Expression |
---|---|
hb3anOLD |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-3an 936 |
. 2
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2 | hb.1 |
. . . 4
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3 | hb.2 |
. . . 4
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4 | 2, 3 | hban 1828 |
. . 3
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5 | hb.3 |
. . 3
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6 | 4, 5 | hban 1828 |
. 2
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7 | 1, 6 | hbxfrbi 1568 |
1
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Colors of variables: wff setvar class |
Syntax hints: ![]() ![]() ![]() ![]() |
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-6 1729 ax-11 1746 |
This theorem depends on definitions: df-bi 177 df-an 360 df-3an 936 df-tru 1319 df-ex 1542 df-nf 1545 |
This theorem is referenced by: (None) |
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