Burkina Faso and Michel Kafando was reinstated as Acting President. In the general election held on 29 November 2015, Roch Marc Christian Kaboré won in the first round with 53.5% of the vote and was sworn in as President on 29 December 2015. Formerly called the Republic of Upper Volta, the country was renamed "Burkina Faso" on 4 August 1984 by then-President Thomas Sankara. The words "Burkina" and "Faso" both stem from different languages spoken in the country: "Burkina" comes from Mossi and means "upright" showing how the people are proud of their integrity, while "Faso" comes from the Dyula language and
Union of two regular languages Union of two regular languages In formal language theory, and in particular the theory of nondeterministic finite automata, it is known that the union of two regular languages is a regular language. This article provides a proof of that statement. For any regular languages formula_1 and formula_2, language formula_3 is regular." "Proof" Since formula_1 and formula_2 are regular, there exist NFAs formula_6 that recognize formula_1 and formula_2. Let Construct where In the following, we shall use formula_14 to denote formula_15 Let formula_16 be a string from formula_3. Without loss of generality assume formula_18. Let formula_19 where formula_20 Since formula_21 accepts