Four rules of logic thinking:
1) Question the general order of the ideas in a grouping.
Three analytical activities of grouping: cause of an effect阐述因果关系; divide a whole into its parts把整体拆分成个体; classify like things together属性相似的归纳到一起.
Tips: time order, ranking order, structural order (mutually exclusive of each other and collectively exhaustive in terms of the whole. 各个sub-points是相互独立的，与此同时，所有sub-points加起来可以完美阐述位于金字塔顶端的main point.)
Notes: What does he label the points as? Can i find anything more specifically the same about them? Can i justify their order of the whole on that basis? Are there any missing?
2) Question their particular source in your problem solving process.
When you identify a problem, essentially what you do is recognize that a particular situation yields a specific result. The problem-solving process consists of answering the following questions:
2.1 what is a problem? Things you don't like the result.
2.2 where does it lie? Picture the situation by gathering data, identify different causes/possibilities.
2.3 why does it exist? Make a judgement/hypothesis, brainstorming.
2.4 what could we do about it? List all alternative ways/solutions.
2.5 what should we do about it? Chose among the alternatives and make a final recommendation.
Source: Barbara, p.173
Moreover, you can use logic trees to structure your problem analysis process.
Source: https://strategicppm.wordpress.com/2011/10/10/better-brainstorming-logic-trees/
3) Question your summary statement about them.
State the effect of the actions and make the wording specific.
Source: Barbara, p.141
4) Question the prose in which you express them.
Putting your ideas into readable words.
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