Not Equal ≠

Monadic Not Equal means Unique Mask

      ≠ 'Banana'
1 1 1 0 0 0

      ≠ 'Mississippi'
1 1 1 0 0 0 0 0 1 0 0

Dyadic Not Equal means Not Equal To

      1 2 3 ≠ 4 2 ¯1
1 0 1

      0 1 0 1 ≠ 0 0 1 1
0 1 1 0

      'Banana' ≠ 'a'
1 0 1 0 1 0

      7 ≠ '7'
1