Question 10674: Inclusive Membership in a Declared Closed Rectangle

Original question and givens

Use the explicitly declared closed rectangle with bounds [x_min,x_max,y_min,y_max]=[-25, 25, -24, 26] and point [x,y]=[-1, 1]. Require ordered bounds, allowing equal endpoints. Give (bounds,point,in this declared domain?). A polynomial’s possible global definition does not override a task’s restricted domain.

• G001 — Use the explicitly declared closed rectangle with bounds [x_min,x_max,y_min,y_max]=[-25, 25, -24, 26] and point [x,y]=[-1, 1]. Require ordered bounds, allowing equal endpoints. Give (bounds,point,in this declared domain?). A polynomial’s possible global definition does not override a task’s restricted domain.

Definition and scope

Use the original question domain, assumptions and cited MKO definitions. This item has second-context mathematical and bilingual review, with the model, answer and every arithmetic step independently recomputed from the original parameters; the source question remains a candidate.

• mko-multivariable-real-function

Step-by-step derivation

rectangle coordinate0 lower slack := sub(-1, -25)

rectangle coordinate0 lower slack = 24

rectangle coordinate0 upper slack := sub(25, -1)

rectangle coordinate0 upper slack = 26

coordinate index=0;value=-1;closed bounds=[-25, 25]

signed slacks=[24, 26];inside inclusive interval=Yes

rectangle coordinate1 lower slack := sub(1, -24)

rectangle coordinate1 lower slack = 25

rectangle coordinate1 upper slack := sub(26, 1)

rectangle coordinate1 upper slack = 25

coordinate index=1;value=1;closed bounds=[-24, 26]

signed slacks=[25, 25];inside inclusive interval=Yes

Reverse checks

• S006 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
• S005 · premise_and_result_audit — Recompute rectangle coordinate1 upper slack with exact rational arithmetic, not rounded decimals.
• S004 · premise_and_result_audit — Recompute rectangle coordinate1 lower slack with exact rational arithmetic, not rounded decimals.
• S003 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
• S002 · premise_and_result_audit — Recompute rectangle coordinate0 upper slack with exact rational arithmetic, not rounded decimals.
• S001 · premise_and_result_audit — Recompute rectangle coordinate0 lower slack with exact rational arithmetic, not rounded decimals.

Result

([-25, 25, -24, 26], [-1, 1], Yes)

The full substitutions and premise checks give the original answer; source identity,format and status are unchanged.

This question review and source binding

Review date: 2026-10-26

Original questions, answers, step expressions, numeric ASTs and historical records are retained. Source candidate labels remain historical and are not overwritten as formal proof.