| 释义 |
Definition of modus tollens in English: modus tollensnoun ˌməʊdəs ˈtɒlɛnzˌmōdəs ˈtälenz 1The rule of logic which states that if a conditional statement (‘if p then q’) is accepted, and the consequent does not hold (not-q) then the negation of the antecedent (not-p) can be inferred. Example sentencesExamples - First, although modus ponens has a probabilistic analog, modus tollens does not - the fact that a hypothesis says that an observation is very improbable does not entail that the hypothesis is improbable.
- From a conditional statement, one can construct two types of valid inference: modus ponens and modus tollens.
- Some philosophers have defended the view that animals are not sentient and attempted to use a component conditional for modus tollens.
- Only universal claims are susceptible to the application of modus tollens that underlies falsifiability.
- 1.1 An argument using the rule of modus tollens.
Example sentencesExamples - One use of modus tollens is the reductio ad absurdum argument, i.e. showing that a premise is false by demonstrating that it implies an absurd conclusion.
- Once this is shown, the consequences invite a modus tollens; the mere vulnerability of proposed reductions is hardly enough to support the view with such exotic consequences.
- But when dealing with probabilistic arguments, such as found in the intelligent design approach, modus tollens does not hold anymore.
- So, by modus tollens, I don't know that I have hands.
- This argument has the modus tollens form, and hence is valid - if its premisses are true, then its conclusion must be true as well.
Origin Latin, literally 'mood that denies'. Definition of modus tollens in US English: modus tollensnounˌmōdəs ˈtälenz 1The rule of logic stating that if a conditional statement (“if p then q”) is accepted, and the consequent does not hold (not-q), then the negation of the antecedent (not-p) can be inferred. Example sentencesExamples - Only universal claims are susceptible to the application of modus tollens that underlies falsifiability.
- Some philosophers have defended the view that animals are not sentient and attempted to use a component conditional for modus tollens.
- From a conditional statement, one can construct two types of valid inference: modus ponens and modus tollens.
- First, although modus ponens has a probabilistic analog, modus tollens does not - the fact that a hypothesis says that an observation is very improbable does not entail that the hypothesis is improbable.
- 1.1 An argument using modus tollens.
Example sentencesExamples - So, by modus tollens, I don't know that I have hands.
- One use of modus tollens is the reductio ad absurdum argument, i.e. showing that a premise is false by demonstrating that it implies an absurd conclusion.
- But when dealing with probabilistic arguments, such as found in the intelligent design approach, modus tollens does not hold anymore.
- Once this is shown, the consequences invite a modus tollens; the mere vulnerability of proposed reductions is hardly enough to support the view with such exotic consequences.
- This argument has the modus tollens form, and hence is valid - if its premisses are true, then its conclusion must be true as well.
Origin Latin, literally ‘mood that denies’. |