# Homework+10+answers - Homework 10 ANSWERS I haven't crossed...

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Homework 10 : ANSWERS I haven't crossed out the showlines or put in the boxes (technical inadequacy on my part!). You will need to do these things on the exam however to get full credit. Don't forget that using ID always works (so where I've solved the problem using DD, you could also have solved it using ID). (1) 2200 xBx ; 2200 (129 2200 xBx Pr (2) 2200 xCx Pr (3) (Ba & Ca)--> Db Pr (4) SHOW: Db DD (5) Ba 1, 2200Ο (629 Ca 2, 2200Ο (729 Β (8) Db 3,7,-->O (2) 2200 x(Cx --> Fx) ; 2200 x(Fx --> Rxx) ; Ca / Raa (1) 2200 x(Cx --> Fx) Pr (2) 2200 x(Fx --> Rxx) Pr (3) Ca Pr (4) SHOW: Raa DD (5) Ca-->Fa 1, 2200Ο (6) Fa-->Raa 2, 2200Ο (7) Fa 3,5,-->O (8) Raa 6,7,-->O (3) 2200 x~Gx ; Ga v Ha ; 2200 x(Rx-->~Hx) / ~Ra (1) 2200 x~Gx Pr (2) Ga v Ha Pr (329 2200 x(Rx-->~Hx) Pr (4) SHOW: ~Ra DD (5) ~Ga 1, 2200Ο (6) Ha 2,5,vO (7) ~~Ha 6,DN (8) Ra-->~Ha 3, 2200Ο (9) ~Ra 7,8,-->O

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(4) 2200 (129 2200 x[(Ax & Bx)--> Cx] Pr (2) ~Cf
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Homework+10+answers - Homework 10 ANSWERS I haven't crossed...

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