# When “All the Five Circles” are Four: New Exercises in Domain Restriction

> Research article (Topoi, 2015) · cited 52× · AI/ML

**Wikidata**: [openalex:W2038578325](https://www.wikidata.org/wiki/openalex:W2038578325)  
**Source**: https://4ort.xyz/entity/when-all-the-five-circles-are-four-new-exercises-in-domain-restriction