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Some playful images inspired by Aristotelian Logic
The subject-predicate form of atomic propositions
The Square of Opposition
The basic form of every proposition is 'S is P' where 'S' stands for subject, 'P' for predicate and 'is' for the copula.
What can be predicated universally of anything else, whether affirmatively of negatively, can be predicated in the same way of all that is contained under it.
Mandel's edition of Aldrich's Logic, Oxford 1862
The moods of the syllogism
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