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Mirrors > Home > NFE Home > Th. List > a1dd | Unicode version |
Description: Deduction introducing a nested embedded antecedent. (Contributed by NM, 17-Dec-2004.) (Proof shortened by O'Cat, 15-Jan-2008.) |
Ref | Expression |
---|---|
a1dd.1 |
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Ref | Expression |
---|---|
a1dd |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | a1dd.1 |
. 2
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2 | ax-1 6 |
. 2
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3 | 1, 2 | syl6 29 |
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 |
This theorem is referenced by: merco2 1501 ax12b 1689 nfsb4t 2080 lenltfin 4470 tfinltfinlem1 4501 xpexr 5110 eqfnfv 5393 dff3 5421 spacind 6288 |
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