Einstein 15: Merging left_of? with implies?

merge.rb

# Implies
def i(a, b, c, d)
  (0..4).any? do |i|
    a[i] == b &&
    c[i] == d
  end
end

# Left of
def l(a, b, c, d)
  (0..4).any? do |i|
    a[i]   == b &&
    c[i+1] == d
  end
end

# Modify implies? to take a positional modifier
def i(a, b, c, d, o = 0)
  (0..4).any? do |i|
    a[i] == b &&
    c[i+o] == d
  end
end