noun ayer Sir Alfred Jules. 1910–89, English positivist philosopher, noted particularly for his antimetaphysical work Language, Truth, and Logic (1936) 3
noun ayer Sir A(lfred) J(ules)1910-89; Brit. philosopher 3
noun ayer Sir A(lfred) J(ules) 1910–1989, English philosopher, teacher, and author. 1
