We call this equation:

  • A = B

We call this inequality:

  • A > B
  • A < B

What do we call this:

  • A ≥ B
  • A ≤ B



The first is "strict inequality" - greater than or less than.

The second is just called "inequality" - greater than or equal to or less than or equal to.

The reason being that A > B implies that A must be greater than B: there is no alternative to this statement. It is strict.

However, A >= B means that A could be greater than B, but it could also be equal. It is less strict, but we just call it "inequality", not unstrict inequality.

  • OK, so I was wrong thinking that the second one (with > and <) was called inequality...? – barak manos Feb 1 '15 at 9:59
  • 1
    @barakmanos Not at all: > and < are still inequalities, but if you want to differentiate them from ≥ and ≤, you would call them "strict inequalities". Calling them inequalities on their own is still fine. :) – user108188 Feb 1 '15 at 10:02
  • @donaldacmartin. I think you are using "first" to mean "second" and "second" to mean "third". – fdb Feb 1 '15 at 11:59
  • All inequalities are not created equal. – Hot Licks Feb 1 '15 at 23:11
  • @HotLicks All inequalities are created equal, sum is just more equal than others... – CJ Dennis Feb 26 '15 at 11:31

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