Syntax of multiple let assignments vs tuples

General Usage
10

I thought this was quite clear, but it don’t support. (not a big deal though)

julia> let r = s ∈ S ? R1 : R2 # Okay

julia> for r = s ∈ S ? R1 : R2 # not Okay
ERROR: ParseError:
# Error @ REPL[6]:1:11
for r = s ∈ S ? R1 : R2
#         ╙ ── not a unary operator