Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ ¹ ² ³ °
 

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OK. Good luck with that.
Bob, you have inspired me to get back to proofs. Thank you so much!
Which is further supportive evidence of the proposition that .....
Hmm... Funny Posts ... Great
I have gone to some length to prove that 2 + 2 = 4
Hi Real
I see anonimnystefy has caught onto the interval notation.
And why is that?
Yup!
Ok I'm done for now. See post 7.
hi
Hi Bob
hi (infinity,infinity) definition: definition: Let x = {devising the following proof} axiom 1. 2 = 1 + 1 axiom 2. 3 = 2 + 1 axiom 3. 4 = 3 + 1 rules of substitution apply associativity applies proof: 2 + 2 = 2 + (1 + 1) (by substitution and axiom 1) = (2 + 1) + 1 (associativity) = 3 + 1 (substitution and axiom 2) = 4 (substitution and axiom 4) therefore 2 + 2 = 4 It is self evident that Hope you like this. Bob
Great thinking guys! I never thought of using the actual meaning of fun in the proof.
OK. I have a better one.
hi (infinity,infinity) 