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Erdős problem 125

Case 3: Does A+BA + B have positive upper and lower density that are equal? This is the literal interpretation of "positive density" which was falsified.

Erdős Problems records this as disproved (Lean).

No Repository has ruled on it here.

How far the record reaches4 of 6 stages
  1. Sourceerdos-problems
  2. StatementRetained
  3. Formal6 retained
  4. Resolutiondisproved (Lean)
  5. WorkNone recorded
  6. DecisionNone here
  7. The questionNot reached
What this record is missingWork

Nothing here has checked that finding.

Reproducing it here turns a report into evidence.

Where the source files it575 share a topic
Erdős problem 321accepted
Carrying a Standing. Browse the topic.