Extension, [146], [149].

External world, knowledge of, [63] ff.

Fact, [51].
atomic, [52].

Finalism, [13].

Form, logical, [42] ff., [185], [208].

Fractions, [132], [179].

Free will, [213], [227] ff.

Frege, [5], [40], [199] ff.

Galileo, [4], [59], [192], [194], [239], [240].

Gaye, [169 n.], [175], [177].