status 20110524

-Solved 3.1-5.  Just an exercise of proofing skill.

-Corrected the exact exercise numbers for 2nd editions

-also finished P3-4{a,c,d,e,f} in my head

-recorded what I finished in my head for 3.2 as well.

Things go well.  Progress is also faster than I thought.  Spending hard time in Chapter 2 totally worth it.

Fuzzy reading: 339/1144
Browse reading: 309/1144
Exercises up to 3-1.6

Exercises which are finished but not on paper: 1.1-2, 1.2-2, 1.2-3, P1-1, all Sec 3.1, 3.2-{1,2,3,5,6,7,8} P3-4{a,c,d,e,f}, 4.5-1, P4.4(a-c), 6.1-{1,2,3,7}, 6.2-3, 6.2-4, 10.1-6, 10.1-7, 12.1-{1,2,4} 12.2-{2.3}, 12.4-4, P12.4(a),
Revisit: (af Ch3) P2.1c