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Mirrors > Home > NFE Home > Th. List > sylbird | Unicode version |
Description: A syllogism deduction. (Contributed by NM, 3-Aug-1994.) |
Ref | Expression |
---|---|
sylbird.1 | |
sylbird.2 |
Ref | Expression |
---|---|
sylbird |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | sylbird.1 | . . 3 | |
2 | 1 | biimprd 214 | . 2 |
3 | sylbird.2 | . 2 | |
4 | 2, 3 | syld 40 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wb 176 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 |
This theorem depends on definitions: df-bi 177 |
This theorem is referenced by: 3imtr3d 258 eqreu 3028 sfinltfin 4535 ov3 5599 erref 5959 enmap2lem3 6065 nenpw1pwlem2 6085 tlecg 6230 ce2le 6233 addcdi 6250 nchoicelem9 6297 |
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