Dr Sohail Ansari

  Experimental science requires reproducible empirical evidence Science studies the natural world. Here logical proof alone is insufficient. Scientists require observations and experiments. Even more importantly, other researchers should be able to obtain similar results. That is reproducibility. Example 1 A chemist claims: This chemical kills bacteria. Reviewer asks: Show the experiment. The scientist provides: laboratory method measurements statistical analysis Other laboratories repeat the experiment. If they obtain similar results, confidence increases. Example 2 A physicist claims: This particle exists. Other laboratories attempt to detect it. If nobody can reproduce the observation, scientists remain skeptical. What counts as justification? observations experiments measurements reproducibility statistical analysis peer review Not enough: "I saw it once."

  every discipline has its own standard of justification —that is, its own criteria for deciding when a conclusion is adequately supported. 1. Mathematics requires proof In mathematics, a statement is accepted only if it is logically deduced from definitions, axioms, and previously proven results. The emphasis is on logical necessity , not observation. Example 1 Claim: The angles of a triangle add up to 180° (in Euclidean geometry). A mathematician does not measure thousands of triangles. Instead, they prove the statement using axioms and logical deduction. Once proved, the conclusion follows necessarily. Example 2 Claim: √2 is irrational. Mathematicians do not test many square roots. Instead they construct a proof (often by contradiction). The proof demonstrates that assuming √2 is rational leads to a logical contradiction. Therefore, √2 must be irrational. What counts as justification? definitions axioms logical deduction valid proof Not enou...

 More generally, rhetorical phrasing can: make writing more engaging, make ideas more memorable, create emphasis, help readers follow the flow of an argument, evoke emotion or vivid imagery. For example: "Life moves forward." is shorter, more vivid, and easier to remember than: "Current political arrangements may deserve greater normative weight than ancient occupancy under certain theories of political legitimacy." The first sentence is rhetorically powerful; the second is analytically precise. In academic writing, rhetorical language may enhance presentation, but it does not replace the need for explicit reasoning and supporting evidence.

  "Life moves forward." Then readers must ask to explain and provide a yardstick to check. A careful reader should ask questions such as: What exactly does "moves forward" mean? Why should moving forward determine legal rights? What evidence supports this claim? How would we know if the principle is correct? Does it apply equally in every territorial dispute? These questions seek a testable argument, not merely an appealing slogan. Without answers, the phrase functions as rhetoric rather than demonstration.

  "The standard of justification says what counts as sufficient reason for accepting a conclusion." A standard of justification is the criterion used to decide whether a conclusion has been adequately supported. Example: Suppose a historian claims: "The reform increased labor mobility." A reviewer asks: "Why should I accept that?" The historian replies: contemporary employment records, wage data, parliamentary debates, factory reports, consistent chronology. The discipline has implicit standards for what counts as sufficient support. Another historian cannot simply say: "I have a strong intuition." because intuition alone does not satisfy the discipline's standard of justification. Different disciplines have different standards. For example: Mathematics requires proof. Experimental science requires reproducible empirical evidence. History requires persuasive use of sources, contextual analysis, and reaso...

  "If people were removed by genocide and ethnic cleansing..." If people were removed by genocide and ethnic cleansing then it determines and should determine which legal principle modern law ought to adopt. Here we need to distinguish facts from legal consequences. The historical fact might be: A population was forcibly expelled. That historical finding can be extremely important. It may trigger legal rules under international law, such as rules concerning refugees, unlawful displacement, or property rights. However, the historical fact does not itself contain the legal rule. Rather, the legal rule comes from constitutions, statutes, treaties, or customary international law. For example: Historical fact: A village was destroyed and its inhabitants expelled. Legal principle: People unlawfully displaced have certain rights of return, restitution, or compensation under applicable law. History establishes the factual predicate; law determines the legal consequences. In many lega...