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→Negative Proof=: extra = sign
: ''Main article: [[Manufacturing facts from a theory]]''
: ''Main article: [[Manufacturing facts from a theory]]''
===Negative Proof====
===Negative Proof===
Negative proof or proving a negative, means you cannot prove something doesn't exist from lack of observation, for example ''"A has not been seen, therefore, A does not exist"''.
Negative proof or proving a negative, means you cannot prove something doesn't exist from lack of observation, for example ''"A has not been seen, therefore, A does not exist"''.