| Terry Pratchett Crying is all right in its way while it lasts | It jumps hurdles, leaps fences, penetrates walls to arrive at its destination full of hope |
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| They are conditions of the human mind | In the world, there are billions of people |
Two expressions are said to be equivalent if, for each combination of values for the free variables, they have the same output, i.
26| I talk to myself because I like dealing with a better class of people | Fone - Data Recovery Android Recover Deleted WhatsApp Messages on Android• An ugly personality destroys a pretty face |
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| that is hard to break | If we take into account only native speakers 144 million native speakers in Russia, Belarus, Ukraine and other countries , it is the 8th in the world |
However, in modern mathematics, and in particular in , formulas are viewed as expressions that can be evaluated to true or false, depending on the values that are given to the variables occurring in the expressions.
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