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Sort the moves into valid and invalid

Exercise and reference answers

Left
Valid
Items
  1. Item
    Convert I simply
    Answer
    Valid
  2. Item
    Convert A simply
    Answer
    Invalid
  3. Item
    Convert E simply
    Answer
    Valid
  4. Item
    Obvert A to E
    Answer
    Valid
  5. Item
    Convert O simply
    Answer
    Invalid
  6. Item
    Contrapose O
    Answer
    Valid
  7. Item
    Obvert O to A
    Answer
    Invalid
  8. Item
    Convert A by limit
    Answer
    Valid
  9. Item
    Contrapose I
    Answer
    Invalid
  10. Item
    Contrapose A
    Answer
    Valid
Right
Invalid
Instructions
Swipe left if the move is a legitimate inference, right if it is not.

Explanation

_Source: Carveth Read, Logic: Deductive and Inductive (1914, public domain), Chapter VII, Immediate Inferences, section 10_
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