Bert Le Bruyn cannot cancel a Griceian implicature? (Then perhaps it ain't)

[PDF] Obligatory implicatures in epistemic and free choice indefinitesFile Format: PDF/Adobe Acrobat - Quick View
One striking difference between these two cases is that while the free choice effect in FCIs is obligatory (non cancelable), but also embeddable (e.g. (3) ...
www.let.uu.nl/~Bert.leBruyn/personal/.../workshops/ab_aloni-schulz.pdf