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Boolean operators

  • AND: vetterli AND wavelet (you can also use + char instead of AND)
  • NOT: vetterli NOT wavelet (you can also use - char instead of NOT)
  • OR: vetterli OR wavelet (you can also use | char instead of OR)

Parentheses

You can also use parentheses in your queries to group boolean expressions together. Nested parentheses are also supported.

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