Table of Operator Precedences (Gries & Schneider)

(a)   [x:=e]   (textual substitution)   (highest precedence)
(b)   .   (function application)
(c)   + - ¬ # ˜ ℘   (unary prefix operators)
(d)   **
(e)   ⋅ / ÷ mod gcd   (arithmetic operators)
(f)   + - ∪ ∩ × ∘ ⋅
(g)   ↓
(h)   #
(i)   ⊲ ⊳
(j)   = < > ∈ ⊂ ⊆ ⊃ ⊇ |
(k)   ∨ ∧
(l)   ⇐ (implication, consequence)
(m)   ≡     (lowest precedence)