Definition of modus tollens in English:

modus tollens

noun 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.
否定后件的假言推理，拒取式
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. 1.1 An argument using the rule of modus tollens.
  拒取式论证
  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 tollens

nounˌmōdəs 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.
否定后件的假言推理，拒取式
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. 1.1 An argument using modus tollens.
  拒取式论证
  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’.

单词	modus tollens
释义	Definition of modus tollens in English: modus tollens noun 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. 否定后件的假言推理，拒取式 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. 拒取式论证 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 tollens nounˌmōdəs 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. 否定后件的假言推理，拒取式 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. 拒取式论证 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’.
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