Is zero a cardinal number?

Discussion in 'Number Theory' started by in2infinity, Apr 20, 2022.

  1. in2infinity


    Apr 20, 2022
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    Hi there. I was having a real problem finding out is zero was a cardinal number or not?
    This website says it is...

    and this website says it is not?

    In fact the issue seems to be very unclear.

    Zero is not in the ordinal set as there is no ZEROth step. Is that right?

    I want to know is I am standing at zero, and a Take a step, Do I count the zero number, and is this a cardinal number?

    I apologise if this seems like a very simple maths question. Thanks in advance for your help..
    in2infinity, Apr 20, 2022
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  2. in2infinity


    Jun 27, 2021
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    The cardinal number of the empty set is is 0.
    MathLover1, Apr 24, 2022
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