Reversing words is not sufficient. A proper converse must be necessarily true whenever the original is true.
“All humans are animals” is true, but “All animals are humans” is false; a horse is an animal but not human. That reversal of wording is therefore not a valid simple converse.
The valid converse is “Some animals are humans.” The actual human members belong to both classes, making the particular converse true.
Opening interactive controls...
Simple Conversion: Definition, Categorical Rules and Reductio
Reversing words is not sufficient. A proper converse must be necessarily true whenever the original is true.
“All humans are animals” is true, but “All animals are humans” is false; a horse is an animal but not human. That reversal of wording is therefore not a valid simple converse.
The valid converse is “Some animals are humans.” The actual human members belong to both classes, making the particular converse true.