coNP ⊆ PSPACE

coNP is contained in PSPACE.

Statement

Migrated verbatim from co-nondeterministic-polynomial-time § Known relationships:

• $\mathbf{coNP}\subseteq \mathbf{PSPACE}$.

Notes

source: folklore: the claim carried no citation on the page it was migrated from, and none was invented.

class: unstated: no citing page says which notion of reduction is meant. Recording a class the wiki does not state would add a claim.

class: free because a containment between complexity classes is proved by any argument at all; the reduction-class axis does not discriminate here, and unstated would wrongly suggest the information is missing.

Recorded during migration and not fixed — these are claims about the source text, not changes to it:

• Bare inclusion with no justification, no citation, and no folklore/standard marker.
• PSPACE is not wikilinked to [[polynomial-space]].