What is the difference between '<' and '≤'?

  1. 'x < 4' simply means that x is less than 4.2) However, x ≤ 4 means that it is less than or equal to 4. So if you have x = 3, 2, 1, 0 then the first term, 'x < 4' appliesbut if x = 4, 3, 2, 1, 0 then the second term, 'x ≤ 4 applies.
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