LOGIC SYMBOLS

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Across
  1. 2. negation
  2. 5. &
  3. 8.
  4. 10. not - negation
  5. 11.
  6. 12.
  7. 13. x'
Down
  1. 1. x + y
  2. 2.
  3. 3. if and only if (iff)
  4. 4.
  5. 5. x ⋅ y
  6. 6. ¬ x
  7. 7. ! x
  8. 9. x | y