This is probably a silly question but I am not from a maths background. I am a bit confused about betti numbers. From what i know :(adsbygoogle = window.adsbygoogle || []).push({});

The zeroth betti number is the number of connected components in space

The first betti number is the number of loops in space

the second is the number of cavities in the space

However does this mean that the zeroth betti number is always atleast one since there is always one connected component ?

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# Betti number

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