the b cell is a vital contributor to humoral immunity. the b cell-specific antigen cd20 is expressed during b cell development, starting at the pre-b cell level and persists through b cell differentiation, but is lost during terminal differentiation to plasma cells. rituximab is a monoclonal antibody that destroys both normal and malignant b cells that have cd20 on their surfaces and is therefo...

We consider a 2-valued non-deterministic connective $${\wedge \!\!\!\!\!\vee }$$ defined by the table resulting from entry-wise union of tables conjunction and disjunction. Being half disjunction we named it platypus. The value is not completely determined input, contrasting with usual notion Boolean connective. call any based on multi-functions over set. In this way, non-determinism allows for...