Thun/docs/reference/AMPERSAND•AMPERSAND.md

## && Combinator Short-circuiting Boolean AND Accept two quoted programs, run the first and expect a Boolean value, if it's true pop it and run the second program (which should also return a Boolean value) otherwise pop the second program (leaving false on the stack.) [A] [B] && ---------------- true B [A] [B] && ---------------- false false ### Definition nulco [nullary [false]] dip branch ### Derivation TODO: this is derived in one of the notebooks I think, look it up and link to it, or copy the content here. ### Discussion This is seldom useful, I suspect, but this way you have it. ### Crosslinks ||