SHAWN MICHAEL STANDEFER2023-06-012023-06-012023-031425-3305https://scholars.lib.ntu.edu.tw/handle/123456789/631723enrelevant modal logic; S5; universal necessity; conceptions of necessity; SIMPLIFIED SEMANTICSVarieties of Relevant S5journal article10.12775/LLP.2022.011WOS:000767061700001