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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: quantifier-negation-flip, quantifier-order-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: quantifier-negation-flip
TMUA-P2-ARG3-001
What does the statement “For all integers n, n^2 0 ” assert?
Quantifiers
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