## Mathematics 201A: Introduction to Proofs

Instructor: Jonathan Smith, 496 Carver, 4-8172 (voice mail)

e-mail: jdhsmithATiastateDOTedu (substitute punctuation)

Office Hours: Mon. 10 - 10.50 am, 3.10 - 4 pm; Wed. 10 - 10.50 am; Fri. 10 - 10.50 am (subject to change).

Special office hours Tuesday, 12/12, 10 - 11 am; Thursday, 12/14, 1.30 - 2.30 pm.

Grading: 80% for in-class assignments (at random times), homework (last assignment due 12/4); 20% for the final, Fri., 12/15, 7.30-9.30 am.

Click here for tally of points earned.

Textbooks:

Study Plan: Regular attendance and participation in class activities are the prerequisites for success. Except in extreme circumstances, no accommodation can be given for failure to meet this responsibility.

Assignments will be given regularly. They will not be graded each week, but it is absolutely essential to solve each homework problem in order to understand the material and develop the necessary skills.

Communication devices must remain switched off during the class periods and final.

Additional Mathematics course policies

Syllabus: Sets, logic, proofs in algebra and calculus.

### Assignments

Note: In these assignments, (BP) and (BA) refer to the versions of the textbooks from the links above.

Click here for the Practice Final in Portable Document Format.

12/4 for 12/6: Read (BA) Prop. 2.5.14; do (BA) Exercises 2.5.7: 3(a), (b).

Click here for the Third Graded Homework in Portable Document Format (due 12/4).

12/1 for 12/4: Read (BA) Sections 2.5.1-2; do (BA) Exercises 2.5.7: 1, 2, 3(d).

11/29 for 12/1: Read (BA) Section 2.4; do (BA) Exercises 2.4.1: 1, 4, 5.

11/27 for 11/29: Read (BA) Sections 3.2.1-3; do (BA) Exercises 3.2.4: 1, 3, 5 (just prove continuity at x = 0).

11/17 for 11/27: Read (BA) Section 2.2.1 and Prop. 2.2.5; do (BA) Exercises 2.2.5: 1, 2, 3, 5, 7.

11/15 for 11/17: Complete reading of (BA) Section 2.1; do (BA) Exercises 2.1.4: 3, 4, 13, 14, 15, 17.

11/13 for 11/15: Read (BA) Section 2.1 through Section 2.1.1; do (BA) Exercises 2.1.4: 1, 2, 9, 10.

Click here for Practice Test #2 in Portable Document Format

11/6 for 11/8: Read (BA) Section 1.3; do (BA) Exercises 1.3.1: 1, 2, 3, 7.

11/3 for 11/6: Read (BA) Section 1.2.2; do (BA) Exercises 1.2.5: 1, 2, 8.

11/1 for 11/3: Read (BA) Sections 1.2.1 (not proof of Ex. 1.2.3), 1.2.3, 1.2.4; do (BA) Exercises 1.2.5: 4, 7, 9.

10/30 for 11/1: Read (BA) Section 1.1 to just before Definition 1.1.5; do (BA) Exercises 1.1.1: 2, 4, 6, 9.

Click here for the Second Graded Homework in Portable Document Format (due 10/30).

10/27 for 10/30: Read (BP) Section 13.3.

10/25 for 10/27: Read (BP) Sections 13.1, 13.2; do (BP) Exercises 13.2: 2, 4, 6, 8.

10/23 for 10/25: Read (BP) Sections 12.5, 13.1 (through Theorem 13.1); do (BP) Exercises 12.2: 9, 10; 12.5: 2, 6; 13.1: 4, 6, 8.

10/20 for 10/23: Read (BP) Sections 12.2, 12.4, 12.6; do (BP) Exercises 12.2: 2, 4; 12.4: 2, 6; 12.6: 2, 6.

10/16 for 10/18: Read (BP) Sections 11.0, 11.5, 12.1; do (BP) Exercises 11.0: 2, 4, 12, 14; 12.1: 2, 4, 8, 10.

10/13 for 10/16: Read (BP) Section 10.1; do (BP) Exercises 10: 10, 18, 24, 34, using induction or otherwise.

10/11 for 10/13: Read (BP) Chapter 10 through Prop. 10.1; do (BP) Exercises 10: 2, 4, 6, 8, 16, using induction or otherwise.

10/9 for 10/11: Read (BP) Section 3.4; do (BP) Exercises 3.4: 2, 4, 8, 10, 12.

Click here for Practice Test #1 in Portable Document Format

10/2 for 10/4: Read (BP) Chapter 9; do (BP) Exercises 9: 4, 12, 16, 28, 30, 34.

9/29 for 10/2: Read (BP) Sections 8.1 to 8.3; do (BP) Exercises 8: 4, 6, 8, 20, 22.

9/27 for 9/29: Complete reading of (BP) Chapter 7; do (BP) Exercises 7: 16, 28.

9/25 for 9/27: Read (BP) Chapter 7 up to WARNING in 7.3; do (BP) Exercises 7: 2, 4, 12, 18, 20.

Click here for the First Graded Homework in Portable Document Format (due 9/25).

9/22 for 9/25: Read (BP) Sections 6.1, 6.2; do (BP) Exercises 6: 2, 6, 8, 10.

9/20 for 9/22: Read (BP) Sections 5.1, 5.3; do (BP) Exercises 5: 2, 4, 6, 12, 16.

9/18 for 9/20: Read (BP) Sections 4.4, 4.5; do (BP) Exercises 4: 14, 16, 18, 20, 26.

9/15 for 9/18: Read (BP) Sections 4.1 to 4.3; do (BP) Exercises 4: 2, 4, 6, 10, 12.

9/11 for 9/13: Read (BP) Section 2.10; do (BP) Exercises 2.10: 2, 4, 6, 8.

9/8 for 9/11: Read (BP) Sections 2.7 to 2.9; do (BP) Exercises 2.7: 4, 8, 10; 2.9: 2, 4, 6, 10.

9/6 for 9/8: Read (BP) Sections 2.5, 2.6; do (BP) Exercises 2.5: 10; 2.6: 6, 8, 12, 14.

9/1 for 9/6: Read (BP) Sections 2.3, 2.4; do (BP) Exercises 2.3: 2, 4, 8, 10; 2.4: 2, 4.

8/30 for 9/1: Read (BP) Sections 2.1, 2.2; do (BP) Exercises 2.2: 1, 3-5, 7-10.

8/25 for 8/28: Read (BP) Section 1.8; do (BP) Exercises 1.8: 2, 4, 6, 9, 14.

8/23 for 8/25: Read (BP) Sections 1.3 to 1.7; do (BP) Exercises 1.3: 2, 4, 10; 1.4: 4, 5; 1.5: 2(a)-(c), 4(f)(g)(h); 1.6: 2(a),(f),(g); 1.7: 10, 12 (p.23).

8/21 for 8/23: Read (BP) Sections 1.1, 1.2; do (BP) Exercises 1.1: 1-4, 17-20, 30-33, 39, 41, 43; 1.2: 1, 3, 10, 12, 20.