Open the claim ↗

Wire it so it is safer.

What has to be named before “safer” has a meaning?
Read all answer branches

What that answer leaves out

Only the number of hasps

Counting hasps does not specify how they compose.

Excluded world. A box that opens when either hasp opens is left out.

Write the limit in your own words

The composition rule and objective

Blocking and availability can call for different rules.

Excluded world. A box evaluated under a different opening rule is excluded from this comparison.

Carry the limit forward

Both must always open

That selects conjunction before naming the objective.

Excluded world. A box intended to open when either hasp opens is left out.

Write the limit in your own words

Either must always open

That selects disjunction before naming the objective.

Excluded world. A box intended to require both hasps is left out.

Write the limit in your own words

Move the device

named composition rules only; no rates or routing order

Model scope: SELF-AUDITED. Read the exact constraints and limits.

What does this fail to establish?

Your words stay on this page. Nothing is sent or stored.

  • any rate, and nothing about routing order
  • These are self-audited digital models, not independently verified physical devices.
  • No learner efficacy, transfer, accessibility equivalence, or vendor performance has been measured.
  • Unbounded and temporal devices remain text exercises; no faithful state machine is asserted for them.
  • The receipt exercise has no supplied totals or ceiling, so it supports no computed denominator here.
Return to the claim

Without the device

Look away from the object, then answer the question again. This is a prompt for reflection, not a measured learning outcome.

What has to be named before “safer” has a meaning?
  • Only the number of hasps
  • The composition rule and objective
  • Both must always open
  • Either must always open