Logic Terminology

noun the act or process of placing in contrast or opposition

• In logic, contraposition is a valid form of argument that involves switching the subject and predicate of a conditional statement.
• Contraposition basically means flipping the parts of a 'if-then' statement around to make a new statement.
• Contraposition is like doing a switcheroo with the parts of a sentence to make a different sentence.
• Just like how contraposition in logic involves rearranging statements, sometimes in life we need to change our perspective to see things differently.

noun a conversation or discussion

verb to engage in conversation or discussion

• It is important to be able to converse effectively in a professional setting.
• I love to just sit and converse with my friends for hours.
• Let's grab a coffee and converse about the latest gossip.
• The colors in the painting seem to converse with each other, creating a harmonious balance.

adjective a word that describes or modifies a noun or pronoun, in this case, 'deductive' describes a type of reasoning that is based on logical conclusions

• The scientist used deductive reasoning to reach a logical conclusion based on the evidence.
• She's really good at figuring things out using deductive reasoning.
• Dude, I totally deduced that she was lying about her whereabouts.
• His deductive skills were like a well-oiled machine, always leading him to the right answer.

noun a person or thing that is disjoined or disconnected

adjective disconnected or disjointed

• The disjunct regions of the country have different economic policies.
• The disjunct areas of town have their own rules.
• The disjunct parts of the city do things their own way.
• Her thoughts were disjunct, jumping from one idea to another without connection.

adjective relating to or expressing a choice between alternatives

• The disjunctive conjunction 'or' is used to present mutually exclusive options.
• You can choose either option A or option B, it's disjunctive.
• You gotta pick one or the other, it's disjunctive like that.
• The disjunctive paths in life led her to different destinations.

noun a fraudulent imitation; a counterfeit

adjective not in accordance with truth or fact; incorrect

• The witness provided false testimony during the trial.
• Don't believe everything he says, he's full of false information.
• She's spreading false rumors about him.
• His smile was false, hiding the pain he felt inside.

noun the action or state of being involved in something

• The implication of the new policy is that all employees must undergo additional training.
• So, what's the implication of skipping class?
• I didn't realize the implication of ghosting someone until it happened to me.
• The dark clouds rolling in had a heavy implication of an impending storm.

noun the act of implying or something that is implied

verb to indicate or suggest without explicitly stating

• The speaker did not directly state his opinion, but his words seemed to imply that he agreed with the proposal.
• She didn't say it outright, but I think she was trying to imply that she didn't want to go to the party.
• I don't want to imply anything, but I heard some gossip about them.
• The painting's use of dark colors can imply a sense of sadness or mystery.

noun a negative statement or denial

• Negation is the act of denying or refuting something.
• Negation means saying 'no' or expressing disagreement.
• Negation ain't my thing, I prefer to keep things positive.
• In the garden of positivity, negation is like a weed that needs to be removed.

preposition a word that shows the relationship between a noun (or pronoun) and other words in a sentence

conjunction a word used to connect words, phrases, clauses, or sentences

• You can choose to either attend the meeting in person or join via video conference.
• Do you want pizza or sushi for dinner tonight?
• I can't decide whether to chill at home or hit up the club.
• Life is full of choices, like whether to follow your heart or your head.

noun a statement or assertion that expresses a judgment or opinion

verb none

adjective none

adverb none

pronoun none

preposition none

conjunction none

interjection none

article none

• The company presented a new business proposition to the investors.
• They put forth a new idea to the investors.
• They pitched a new plan to the investors.
• The proposition they offered was like a golden ticket to success.

noun a form of reasoning in which a conclusion is drawn from two given or assumed propositions (premises); a common or useful form of reasoning

• A syllogism is a form of reasoning in which a conclusion is drawn from two given or assumed propositions (premises).
• I learned about syllogisms in my philosophy class - it's all about drawing conclusions from two premises.
• Syllogisms are like those logic puzzles where you have to figure out who ate what based on a few clues.
• In a way, life can be seen as a series of syllogisms where we make decisions based on our beliefs and experiences.

adjective redundant or repetitious; saying the same thing in different words

• The statement 'I am here' is tautologous because it repeats the same idea.
• Saying 'I am here' is just stating the obvious, it's tautologous.
• Repeating 'I'm right here' is so tautologous, like duh!
• Her constant need for attention is tautologous, always seeking validation.

noun the saying of the same thing twice in different words, generally considered to be a fault of style

• The statement 'the sun will rise tomorrow' is a tautology because it is always true.
• Saying 'I am who I am' is kind of a tautology, don't you think?
• It's like saying 'duh, obviously' - total tautology.
• Her constant need for validation is a tautology of her insecurity.

noun a form of reasoning in which a conclusion is drawn from two given or assumed propositions (premises); a syllogism

adjective relating to or based on syllogism; characterized by or involving deductive reasoning

• The philosopher presented a syllogistic argument to support his theory.
• I'm not sure I follow the syllogistic reasoning behind that decision.
• I don't buy into that whole syllogistic mumbo jumbo.
• She constructed a syllogistic web of lies to cover up her actions.

adjective describing something that can be satisfied or fulfilled

• The mathematical equation is satisfiable when there exists an assignment of values that makes it true.
• I finally found a solution that makes the problem satisfiable.
• Dude, I cracked the code and made it satisfiable!
• Her smile was the missing piece that made his heart satisfiable.

noun A quantity on which an operation is to be done in mathematics or logic

• In mathematics, an operand is a quantity on which an operation is performed.
• The operand in this equation is the number on the left side.
• Dude, just plug in the operand and you'll get the answer.
• The operand in this situation is the key factor that determines the outcome.

noun a rare or obsolete term for the act of separating or cutting off

• The judge issued an abjunction to prevent the company from releasing the confidential information.
• The boss gave a strict abjunction to stop employees from using their phones during work hours.
• I heard the teacher laid down an abjunction on using phones in class.
• The therapist suggested an abjunction from negative thoughts for a healthier mindset.