How can you prove something is alive?


Look for vital signs. Basically, something that is alive breathes. It has a pulse (or pulses) and the heart beats. Modern machines detect if a person is dead or alive. Another, if it moves by itself and not battery powered nor affected by other forces like wind) then it is alive.
Q&A Related to "How can you prove something is alive?"
Generally anything that can eat food, breath in air, sleep they day away, and reproduce would be considered to be living and very much alive.
Check if it's breathing duhh!
Proofs are based on a formal set of assumptions and rules for what you can do with those assumptions. For example, if you have the 3 rules: a < b b < c For all numbers
You can say something like this;
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Speculation. Perhaps theory. ...
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