---

title: 'Operators must include goal_true, which mutates: Replaces a body goal with true.' status: open text_ref: readme:README.md#L121 tags:

• strict-modeling
• confidence:0.90
• confidence-band:high
• provenance:readme-readme-md-l121
• lane:strict

semantic_text: 'Operators must include goal_true, which mutates: Replaces a body goal with true.' logic_claims:

• CLAIM-3F1CE219296A9664

semantic_clauses:

• 'Operators must include goal_true, which mutates: Replaces a body goal with true.'

semantic_inventory_version: kibi.semantic-inventory.v1 semantic_source_field: semantic_text semantic_source_hash: a76781dfccb24d0502b7c5f9aaa980dec45b56c5ab93a5147aa7b01bb4e72298 semantic_inventory:

• claim_key: CLAIM-3F1CE219296A9664 claim_text: 'Operators must include goal_true, which mutates: Replaces a body goal with true' role: normative status: modeled span: start: 0 end: 81 origin: kind: import ref: readme:README.md#L121 recorded_at: '2026-10-29T16:05:28.358Z' firmness: firm required_evidence: asserted id: REQ-AUTO-2A92238812D104CF type: req --- Operators must include goal_true, which mutates: Replaces a body goal with true.

Source

| goal_true | Replaces a body goal with true | p :- q, r. to p :- true, r. |

Source: Mutalog README - README.md#L121