# 196. NOT, IAND, IOR, and IEOR perform logical operations on the bit representations of integers.
topic: {ref}`data-types`
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```
BTEST(i,pos) gives the value of the bit in position pos of integer i, counting from 0 on the right. An N-bit integer can be used to store integers of a smaller BIT_SIZE or N booleans. Intrinsic functions for logical operations are NOT, IAND, IOR, and IEOR.
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