“weak centring”的概念、定义、翻译、参考文献-科学参考

weak centring

Logic

A condition encountered in the field of conditional logic that formalizes an intuition that any possible world $w$ is at least as similar to itself as it is any other. In semantics for conditional logics employing a system of spheres, this means that the world $w$ is a member of every nonempty sphere, i.e.,
- • For all $w$ , if $S_{i} \in $_{w}$ is nonempty, then $w \in S_{i}$ .
When one employs distinct accessibility relation $R_{φ}$ for each formula $φ$ , weak centring is formalized by the condition that:
if $φ$ is true at $w$ then $w R_{φ} w^{'}$ .
This condition can be strengthened to centring, corresponding to the demand that $w$ is the unique point more similar to itself than any other.

单词	weak centring
释义	weak centring Logic A condition encountered in the field of conditional logic that formalizes an intuition that any possible world $w$ is at least as similar to itself as it is any other. In semantics for conditional logics employing a system of spheres, this means that the world $w$ is a member of every nonempty sphere, i.e., • For all $w$ , if $S_{i} \in $_{w}$ is nonempty, then $w \in S_{i}$ . When one employs distinct accessibility relation $R_{φ}$ for each formula $φ$ , weak centring is formalized by the condition that: if $φ$ is true at $w$ then $w R_{φ} w^{'}$ . This condition can be strengthened to centring, corresponding to the demand that $w$ is the unique point more similar to itself than any other.
随便看	Haldane, John Scott Haldane, Richard Burdon, Viscount Haldane of Cloan (1856–1928) Halder, Franz (1884–1972) Haleakala Observatory Hale, Alan Hale cycle Hale, George Ellery Hale, George Ellery (1868–1938) Hale Observatories Hales, Stephen Hale Telescope Halevi, Judah (c.1075–1141) Hale–Bopp Hale–Bopp, Comet Hale’s law half-adder half cell half-cell half chair half duplex half-duplex half duplex communication half-duplex operation half-field prism half-graben