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Mirrors > Home > MPE Home > Th. List > lencl | Structured version Visualization version Unicode version |
Description: The length of a word is a nonnegative integer. This corresponds to the definition in section 9.1 of [AhoHopUll] p. 318. (Contributed by Stefan O'Rear, 27-Aug-2015.) |
Ref | Expression |
---|---|
lencl |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | wrdfin 13323 |
. 2
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2 | hashcl 13147 |
. 2
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3 | 1, 2 | syl 17 |
1
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