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Mirrors > Home > ILE Home > Th. List > a1i | Unicode version |
Description: Inference derived from axiom ax-1 5. See a1d 22 for an explanation of our informal use of the terms "inference" and "deduction." See also the comment in syld 40. (Contributed by NM, 5-Aug-1993.) |
Ref | Expression |
---|---|
a1i.1 |
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Ref | Expression |
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a1i |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | a1i.1 |
. 2
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2 | ax-1 5 |
. 2
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3 | 1, 2 | ax-mp 7 |
1
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