Letters that make predicate calculus
s, a, d, e, l, p, c, r, t, i, u are letters that make 'predicate calculus'
Words within predicate calculus
predicate, cul, calculus, re, te, PR, IC, at, Red, ED, red, ic, cat, CAT, US, AL, CA, Re, Ate, Al, At, Ca, Cu, Lu, Pr, Te are words within 'predicate calculus'