2. Analytical Introduction (3)

1.2 Solution

a) Position taken: Scientific logic is not necessary to acquire science in its imperfect state, but it is necessary by strict necessity of end to acquire science in its perfect state.

b) Demonstration:

i) part one of the the solution
1. everyday experience
2. Logic is only an instrument adopted by intelligence to help it know what it per se knows, since this is by definition a cognitive faculty.
3. per absurdum: if intelligence could not acquire science in an imperfect state, it would not be able to grasp the first elements of this instrument.

ii) part two of the solution
m Logic is completed by proceeding with order, easily and without error in reasoning;
M But it is evident that to proceed with order, easily and without error is not merely useful, but rather necessary for the very being of science;
C Therefore, logic is necessary by a strict necessity of end to acquire science in its perfect state. (SM,2,lect. 5, n. 335: absurdum est, quod homo simul quaerat scientiam et modum qui convenit scientiae. Et propter hoc debet prius addiscere logicam quam alias scientias, quia logica tradit communem modum procedendi in omnibus aliis scientiis.
For it is absurd, that someone should at the same time be seeking both the science and the mode appropriate to the science. And this is why one should learn logic before the other sciences, because logic deals with the way of proceeding common to all the other sciences.)