A trip-let is a three-dimensional solid that is shaped in such a way that its projections along three mutually perpendicular axes are three different letters of the alphabet.
Hofstadter (1989) has constructed such a solid for the letters G, E, and B which
is illustrated on the cover of *Gödel, Escher, Bach.*

# Trip-Let

## See also

Cork Plug, Rotor## Explore with Wolfram|Alpha

## References

Hofstadter, D. R.*Gödel, Escher, Bach: An Eternal Golden Braid.*New York: Vintage Books, cover and pp. xiv, 1, and 273, 1989.

## Referenced on Wolfram|Alpha

Trip-Let## Cite this as:

Weisstein, Eric W. "Trip-Let." From *MathWorld*--A Wolfram Web Resource. https://mathworld.wolfram.com/Trip-Let.html