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Logical Reasoning
6.17
Conversion is a valid immediate inference for both E and I
(Particular Affirmative) propositions. The converse of any
E or I proposition is true if and only if the original propo-
sition was true. This means that when you convert an E
or I proposition, either both the original and the converse
propositions are true or both are false.
Conversion by Limitation (Subalternation + Conversion)
In some cases, a specific type of conversion known as
'conversion by limitation' is performed.
This involves first changing a universal proposition to
a particular one through subalternation and then con-
verting the result. ...

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