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Examples

01A close readingWhat survives the argument?
02A small thought experimentIs fewer deaths reason enough?
03Evidence used againSame logs. A different claim.
04Reasons working togetherWhy was the signal weaker?
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A close reading

What survives the argument?

Socrates argues that life returns from death. Follow his argument, then ask whether survival is enough to show that a soul can never perish.

Something to tryTry granting the conclusion about survival. Does the final, stronger claim follow?

About this reading

A reconstruction of Phaedo 70c–72d, followed by our own objections. The exhaustion argument is read as an independent reason; it could instead support the principle about opposites. “Cyclical” refers to coming to be, not circular reasoning. The later comparison with Cebes is labelled in the note.

64c ↗87b–88b ↗Jowett, unnumbered ↗70a ↗72a ↗

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A small thought experiment

Is fewer deaths reason enough?

A familiar choice, with one moral premise made visible. The objection questions the step from counting lives to deciding what to do.

Something to tryWhich assumption would you question first: the predicted outcome, or the moral premise?

About this reading

A deliberately bounded switch case: the outcomes are certain and there is no third option. These are stipulations of the example. It presents one line of reasoning, not a resolution of the trolley problem.

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Evidence used again

Same logs. A different claim.

An incident report explains a failure. A week later, the team uses the same evidence to propose a fix. Has the evidence earned that new conclusion?

Something to tryOpen the later discussion. Compare the objection to the log timestamps with the objection to increasing the pool size.

About this reading

A fictional incident. The report is quoted separately from our reconstruction. Reusing the logs keeps one shared observation, while the new support for the proposed fix is a separate connection. The local text beside a use is a note about this discussion.

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Reasons working together

Why was the signal weaker?

A surprising result admits more than one explanation. Two observations work together, another stands on its own, and some checks remain open.

Something to trySuppose the controls used a different reagent lot. Which part of the explanation needs another look?

About this reading

A fictional lab run. Weak controls implicate the reagent only with the shared-lot premise. Overnight storage is a separate reason; the plate-position effect offers an alternative. The note leaves the follow-up experiment open.

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Source

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How each line became points and connections. It explains compilation, not the quality of the reasoning.

Select a source line or a Reading passage to preview an explicit target before applying it.

Written references

Only written references are listed. Locations select their whole source block, not a name token.

Select a passage or a mark.

supportschallengesanswers · repliesis about · clarifiesfrom the outline or a linked block

Project Cogitatum

Language

Quick start
Syntax
Playground

Sky

The whole sky
Research
Source

After the Whole Earth Catalog.

Core 0.5.0

Core 0.5.0 View 0.5.0 Format 0.5.0 Site Public source 7afc31dff872 Private host build 7ad19d6f1dc2