Added with delicate prose to the end of a statement, implying there are two choices (the two choices are readily available in the sentence- so more of a way to drive home the awesomeness or disgust of its subject)
A multiplicative identity of a semiring. For a semiring R, 1 is defined as an element so that for every a being an element of R:
1⊗a = a⊗1 = a
Min-tropical semiring is a semiring (ℝ ∪ {+∞}, ⊕, ⊗) with ⊕ defined as min, and ⊗ defined as the addition of twonumbers. By that definition, zero is +∞, and one is 0