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Mirrors > Home > ILE Home > Th. List > 2a1i | Unicode version |
Description: Add two antecedents to a wff. (Contributed by Jeff Hankins, 4-Aug-2009.) (Proof shortened by Wolf Lammen, 23-Jul-2013.) |
Ref | Expression |
---|---|
2a1i.1 |
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Ref | Expression |
---|---|
2a1i |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 2a1i.1 |
. . 3
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2 | 1 | a1i 9 |
. 2
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3 | 2 | a1d 22 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 |
This theorem is referenced by: equvini 1758 sbcrext 3040 map1 6809 seq3id2 10504 fsum2d 11436 fsumabs 11466 fsumiun 11478 fprod2d 11624 cncfmptc 13953 |
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