“would counterfactual”的概念、定义、翻译、参考文献-科学参考

would counterfactual

Logic

Describes a counterfactual conditional $φ □ \to ψ$ read as the statement that had the antecedent $φ$ been true, then the consequent $ψ$ would have been true. Would counterfactuals are distinguished from might counterfactuals, which assert only that the consequent might have obtained. Philosopher David Lewis (1941–2001) asserted that would and might counterfactual conditionals are related by a duality with respect to a negation $\neg$ by the admissible inferences:
$\frac{φ □ \to ψ}{\bar{\neg (φ ♢ \to \neg ψ)}}$

单词	would counterfactual
释义	would counterfactual Logic Describes a counterfactual conditional $φ □ \to ψ$ read as the statement that had the antecedent $φ$ been true, then the consequent $ψ$ would have been true. Would counterfactuals are distinguished from might counterfactuals, which assert only that the consequent might have obtained. Philosopher David Lewis (1941–2001) asserted that would and might counterfactual conditionals are related by a duality with respect to a negation $\neg$ by the admissible inferences: $\frac{φ □ \to ψ}{\bar{\neg (φ ♢ \to \neg ψ)}}$
随便看	Pennales pennate diatoms Pennatulacea Penning gauge Penning ionization Penning trap penninite Pennsylvanian Penn, William (1644–1718) penny post Penrose process Penrose, Sir Roger Penrose, Sir Roger (1931– ) Penrose, Sir Roger (1931– ) Penrose tiling pension pensionable age pension crisis pension fund pension insurance contract pension rights pension scheme penta- pentadactyl pentadactyl limb