1.01b b) Understand and be able to use the logical Section 5: The 7890 specification explicitly states that: ‘In all connectives . Specification examinations candidates are expected to construct and Content present clear mathematical arguments, consisting of logical Learners should be familiar with the language deductions and precise statements involving correct use of associated with the logical connectives: symbols and connecting language. In particular, terms such and and “congruence”, “if.....then” “if only if” (or “iff”). as ‘equals’, ‘identically equals’, ‘therefore’, ‘because’, and ‘implies’, ‘is implied by’, ‘necessary’, ‘sufficient’, notations such as and should be understood and used accurately.’ Appendix B: The symbol is defined in Appendix B of the 7890 Mathematical specification as identical to or is ‘is congruent to’. Notation Furthermore, as defined in this Appendix as then The p q’. ‘if is not explicitly mentioned in the 7890 specification; term ‘iff’ however, the equivalent mathematical symbol appears and is mentioned above.
1.01b b) Understand and be able to use the logical connectives . Learners should be familiar with the language associated with the logical connectives: “congruence”, “if.....then” and “if and only if” (or “iff”). Section 5: Specification Content Appendix B: Mathematical Notation The 7890 specification explicitly states that: ‘In all examinations candidates are expected to construct and present clear mathematical arguments, consisting of logical deductions and precise statements involving correct use of symbols and connecting language. In particular, terms such as ‘equals’, ‘identically equals’, ‘therefore’, ‘because’, ‘implies’, ‘is implied by’, ‘necessary’, ‘sufficient’, and notations such as and should be understood and used accurately.’ The symbol is defined in Appendix B of the 7890 specification as ‘is identical to or is congruent to’. Furthermore, as defined in this Appendix as ‘if p then q’. The term ‘iff’ is not explicitly mentioned in the 7890 specification; however, the equivalent mathematical symbol appears and is mentioned above.
360173-mapping-guide-legacy-as-and-a2-units-7890-to-h240.docx