səpˈoʊz ɪz ɐn ˈoʊpən, pˈæθkənˈɛktᵻd sˈʌbsɛt ʌv , ænd ɪz ɐ kəntˈɪnjuːəs ænd pˈæθˌɪndᵻpˈɛndənt vˈɛktɚ fˈiːld.
Suppose  is an open, path-connected subset of , and  is a continuous and path-independent vector field.