Linear algebra symbols

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Across
  1. 6. ( )
  2. 8. .
  3. 9. A B
  4. 10. | A | or det(A)
Down
  1. 1. [ ]
  2. 2. Ø
  3. 3. ⊇
  4. 4. x
  5. 5. ⊂
  6. 7. Φ