using Symata

[a,b,c]

{a,b,c}

[
    a
    c + d
    "cat"
    Expand((x+y)^2)
]

f(x)

f % list

f % [a,b,c]

x .%  y

f .% g(1,2)

[Rule(a,b), a => b , a ⇒ b]

[RuleDelayed(a,b),  a .> b]

[a, x^2, b^3, (a+b)^3]  ./ ( x_^n_ => g([n],x))