# Quantitative program reasoning with graded modal types

> Research article (Proceedings of the ACM on Programming Languages, 2019) · cited 83× · AI/ML

**Wikidata**: [openalex:W2964755768](https://www.wikidata.org/wiki/openalex:W2964755768)  
**Source**: https://4ort.xyz/entity/quantitative-program-reasoning-with-graded-modal-types
