Playground

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?

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.

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?

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.

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.

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.

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?

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.

A short first note for writing, moving, and reading back one small argument.