Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °
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- aftermath
- 2012-12-29 21:36:45
thanks julian 
i think this forum can help me a lot . GODbless !
- julianthemath
- 2012-12-29 21:05:59
Welcome to the forum, aftermath. 
- aftermath
- 2012-12-29 20:59:29
thank you scientia
- scientia
- 2012-12-29 20:57:07
Hint: Any set containing an uncountable subset is uncountable.
- aftermath
- 2012-12-29 20:38:33
hi , how to prove that the union of countable set and uncountable set is uncountable ? thanks