Examlex
Note: the solutions to most of the multiple choice questions in these sections use what call the standard assignment of truth values to atomic propositions. The standard assignment of truth values assigns the values given here to the variables in the wffs in the exercises, when read left to right. So, the first variable in the formula read left to right gets the α assignment; the second variable in the formula read left to right (if any) gets the β assignment; the third variable in the formula read left to right (if any) gets the γ assignment; and the fourth variable in the formula read left to right (if any) gets the δ assignment.
For exercises with only one propositional variable, the standard assignment is:
For exercises with two propositional variables, the standard assignment is:
For exercises with three propositional variables, the standard assignment is:
For exercises with four propositional variables, the standard assignment is:
Complete truth tables for each of the following propositions.
-[J ⊃ (K L)] ⊃ [∼L ⊃ (K J)]
Africans
Africans are the people native to the African continent, characterized by a rich diversity of cultures, languages, and histories.
Tobacco Prices
The cost at which tobacco products are sold, which can be influenced by factors such as taxes, production costs, and market demand.
Scots
Refers to the people native to Scotland or things related to Scotland.
North American Landscape
The North American Landscape encompasses a diverse range of ecosystems, from the arctic tundra of Canada to the tropical rainforests of Central America.
Q28: Which of the following propositions is an
Q29: Understanding a language involves more than just
Q52: (∃x)(Ix • Jx) ⊃ [(∀x)Ix ⊃ (∀x)Jx]
Q112: G ? {(H ? ?G) ?
Q168: (D ⊃ E) • (E ⊃
Q195: [(D ⊃ ∼E) • (F ⊃
Q238: Elizabeth has exactly three sons.<br>A) ~(∃x)(∃y)(∃z)(∃w)(Sxe
Q248: The philosophy major on the Dean's list
Q281: (∀x){(Px • Qx) ⊃ [(Rx ⊃ (∼Sx
Q288: The sum of one and the successor