Explicit and implicit yield difference.fs

// Inferred return type: `'a list`
let implicitYield (f: int -> unit) = [
    for i in 0 .. 3 do
        if i = 2 then f i
        else printf "Not 2"
]

// Inferred return type: `unit list`
let explicitYield (f: int -> unit) = [
    for i in 0 .. 3 do
        if i = 2 then yield f i
        else printf "Not 2"
]