- lognum?:procedure
- lognum-sign:procedure
- lognum-value:procedure
- number->lognum:procedure
- lognum->number:procedure
- lognum+:procedure
- lognum-:procedure
- lognum*:procedure
- lognum/:procedure
- lognum-neg:procedure
- lognum-abs:procedure
- lognum-signum:procedure
- lognum-recip:procedure