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Spec: ARG3 · No calculator · ~180s
Letters only — the answer key is hidden. Work it out, then check the solution below.
No written hint yet — check the trope: converse-vs-contrapositive, necessary-vs-sufficient-swap. Name the trap first, work the stem by hand, then open the solution below.
Same topic · same level
TMUA-P2-ARG3-003
Consider (S1) “For every integer x there is an integer y with y > x ” and (S2) “There is an integer y such that for ever…
Quantifiers
Same trap: converse-vs-contrapositive
TMUA-P2-ARG1-001
Let P and Q be mathematical statements. The converse of the statement “If P then Q ” is which of the following?
Statements and connectives
Step up a level
TMUA-P2-ARG3-007
A number-theory worksheet asks pupils to compare two claims about even sums, where all letters denote integers: claim on…
Quantifiers