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one fable-low hijack cell

pair mercury / prolog envelope zh_huo_q ordering BA effort low
Chinese '或' with explicit question marker — '{X}或{Y}?'
verdictpicked prolog (second-offered)  ·  classifierB · tiernone

response (200 chars)

# Mercury vs Prolog

两者都是逻辑编程语言,但定位很不同:

## Prolog
**优点:**
- 历史悠久(1972),生态成熟,教学资源丰富
- 真正的动态性:`assert/retract`、运行时元编程
- 交互式开发体验好,适合快速原型
- 实现众多:SWI-Prolog(功能最全)、SICStus、GNU Prolog
- 约束逻辑编程(CLP)支持好

**缺点

neighbors

ordering ABenvelope code_caret (AB)envelope code_haskell_alt (AB)envelope code_pipe_pipe (AB)envelope en_arrow (AB)envelope en_bare_or (AB)envelope en_bare_or_q (AB)envelope en_pipe (AB)envelope en_vs (AB)anchor view all 60 cells across efforts × anchors