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Not | -. 0 _ _ | Less

`-.y` is`1-y` ;`` for a boolean argument it is the complement (not); for a probability, it is the complementary probability. |  | `x-.y` includes all items of`x` except for those that are cells of`y` . Tolerance`t` is provided by`-.!.t` .

The function less applies to any conformable pair of arguments. For example:

       (i. 9) -. 2 3 5 7
    0 1 4 6 8

       'abcdefghij' -. 'aeiou'
    bcdfghj

       ]m=: i. 4 5
     0  1  2  3  4
     5  6  7  8  9
    10 11 12 13 14
    15 16 17 18 19

       m -. 5 6 7 8 9
     0  1  2  3  4
    10 11 12 13 14
    15 16 17 18 19

       b=: <\ 'abcdefg'
       b
    +-+--+---+----+-----+------+-------+
    |a|ab|abc|abcd|abcde|abcdef|abcdefg|
    +-+--+---+----+-----+------+-------+

       b -. 'abc';'abcde';'cba'
    +-+--+----+------+-------+
    |a|ab|abcd|abcdef|abcdefg|
    +-+--+----+------+-------+

       2 3 4 5 -. 'abcdef'
    2 3 4 5

>> << Ndx Usr Pri Phr Dic Rel Voc !: wd Help Dictionary