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Mirrors > Home > MPE Home > Th. List > 19.28 | Structured version Unicode version |
Description: Theorem 19.28 of [Margaris] p. 90. (Contributed by NM, 1-Aug-1993.) |
Ref | Expression |
---|---|
19.28.1 |
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Ref | Expression |
---|---|
19.28 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 19.26 1648 |
. 2
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2 | 19.28.1 |
. . . 4
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3 | 2 | 19.3 1824 |
. . 3
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4 | 3 | anbi1i 695 |
. 2
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5 | 1, 4 | bitri 249 |
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 1592 ax-4 1603 ax-5 1671 ax-6 1710 ax-7 1730 ax-12 1794 |
This theorem depends on definitions: df-bi 185 df-an 371 df-ex 1588 df-nf 1591 |
This theorem is referenced by: nfan1 1862 aaan 1912 19.28v 1923 wl-ax11-lem7 28545 |
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