Definition from Wiktionary, the free dictionary
extensionally (not comparable)
- In terms or by means of extension
2008 January 3, Anand Vaidya, “Modal Rationalism and Modal Monism”, in Erkenntnis, volume 68, number 2, DOI:10.1007/s10670-007-9093-7:
- As a consequence of these two points, the burden would seem to be on the proponent of (MM) to defend the position that the two modalities are in fact extensionally equivalent, and only notionally distinct.