# isAcyclic

Check if the graph is acyclic.

## Signatures

```ts
export declare const isAcyclic: <N, E, T extends Graph.Kind, Err, R>(ref: RefGraph<N, E, T, Err, R>) => RefSubject.Computed<boolean, Err, R>;
```

## Why

Check if the graph is acyclic. The operation remains attached to the RefSubject's versioned
state boundary.

## Ownership and lifetime

The is acyclic view retains no independent state. An Effect read samples the source once; Fx
observation follows later pushes and its observing Scope owns subscription cleanup.