# Vault 7: Projects

This publication series is about specific projects related to the Vault 7 main publication.

### Grasshopper

# Grasshopper-v2_0_1-UserGuide

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SECRET//NOFORN
2 Operators
An operator is a logical operation that is applied to a series of child facts and
operators.
There are three standard operators (and, or, and xor) which take one or more
children. There are also three unary operators (not, assume_true, assume_false) which
take only one child.
There is an implicit and operator that joins all facts and operators at the top-level of
the rule.
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SECRET//NOFORN

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