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Old 01 Dec 2004, 22:12   #36
Sm�agol-Gollum
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Sm�agol-Gollum
 
Join Date: Feb 2004
Location: On the edge of WILDERLAND
Posts: 2,258
Originally Posted by europe_east:
Originally Posted by jackpot:
Sunt corecte urmatoarele enunturi? Atunci cand raspundeti explicati cum
ati rationat. Pentru enunturile pe care le considerati incorecte prezentati
o interpretare pe baza careia se poate stabili acest lucru.
(a) A -> B, B -> (C v D), ~D |= A -> C
(b) (A & B) -> C, B -> D, C -> ~ D |= ~A
(c) A -> (C v E), B -> D |= (A v B) -> (C -> (D v E))
(d) A -> (B & C), D -> (B v A), C -> D |= A <-> C
(e) (A -> B) v (B -> C) |= A -> (B v C)
(f) (~A & ~B) v C, (A -> D) & (B -> F), F -> (G v H) |= ~G -> (H v C) :huh:

Asa copii, rezolvati-va temele pe net... Din secretele conditionalului "daca ... atunci"? Uite aici ca ti-am rezolvat exercitiile, si nu mi-au placut, sa stii....

a) True, b)-e) False.

Ex.
c) A, C=True, B, D, E=False
d) B, C, D=True, A=False
e) A=True, B, C=False
f) orice combinatie cu C, G, H, F=True

brrrrrr.....amintiri neplacute din clasa a 9-a!!! :shock: :w00t:
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