CS 173

Fall 2026 All Classes

All Classes

Discrete Structures

Credit: 3 hours.

[IAI Code: CS915] Discrete mathematical structures frequently encountered in the study of Computer Science. Sets, propositions, Boolean algebra, induction, recursion, relations, functions, and graphs.

Credit is not given toward graduation for: Credit is not given for both CS 173 and MATH 213. Prerequisite: One of CS 124, CS 125, ECE 220; one of MATH 220, MATH 221.

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CS 173 class schedule data for fall 2026
CRN	Type	Section	Time	Day	Location	Instructor	Section Details
60279	Discussion/ Recitation	AD1	10:00AM -10:50AM	M	0216 Siebel Center for Comp Sci		Availability: Open Part of Term: 1 Date Range: 08/24/26-12/09/26 Section Info: Students enrolling in an EL lecture must also select an ED discussion which will be used for course assessments.
63143	Discussion/ Recitation	AD2	1:00PM -1:50PM	M	0216 Siebel Center for Comp Sci		Availability: Open Part of Term: 1 Date Range: 08/24/26-12/09/26 Section Info: Students enrolling in an EL lecture must also select an ED discussion which will be used for course assessments.
71539	Discussion/ Recitation	AD3	2:00PM -2:50PM	M	0216 Siebel Center for Comp Sci		Availability: Open Part of Term: 1 Date Range: 08/24/26-12/09/26 Section Info: Students enrolling in an EL lecture must also select an ED discussion which will be used for course assessments.
63145	Discussion/ Recitation	AD4	3:00PM -3:50PM	M	0216 Siebel Center for Comp Sci		Availability: Open Part of Term: 1 Date Range: 08/24/26-12/09/26 Section Info: Students enrolling in an EL lecture must also select an ED discussion which will be used for course assessments.
63146	Discussion/ Recitation	AD5	4:00PM -4:50PM	M	0216 Siebel Center for Comp Sci		Availability: Open Part of Term: 1 Date Range: 08/24/26-12/09/26 Section Info: Students enrolling in an EL lecture must also select an ED discussion which will be used for course assessments.
51495	Lecture	AL1	12:30PM -1:50PM	TR	3039 Campus Instructional Facility	Evans, C	Availability: CrossListOpen (Restricted) Part of Term: 1 Date Range: 08/24/26-12/09/26 Section Info: This section is for CS, CS&, CS+X and Computer Engineering majors. These restrictions remain in place throughout registration. Please view the following link for restrictions and release dates: http://go.cs.illinois.edu/csregister Restriction(s): Restricted to Computer Engineering or Computer Science or Statistics & Computer Science or Math & Computer Science or Computer Sci & Anthropology or Computer Sci & Astronomy or Computer Sci & Chemistry or Computer Sci & Linguistics or Computer Science&Crop Sciences or Computer Science and Music or Computer Science & Economics or Computer Science & Advertising or Computer Science & Geog & GIS or Computer Science & Philosophy or Computer Sci & Animal Sci or Computer Science & Education or Computer Science and Physics or ComputerScience&Bioengineering major(s). Restricted to Undergrad - Urbana-Champaign.
51497	Lecture	AL2	12:30PM -1:50PM	TR	3039 Campus Instructional Facility	Evans, C	Availability: CrossListOpen (Restricted) Part of Term: 1 Date Range: 08/24/26-12/09/26 Section Info: This section is for CS minors, NON CS majors, and general campus. These restrictions remain in place throughout registration. Restriction(s): Restricted to Undergrad - Urbana-Champaign. Not intended for CS and blended CS majors students.
40083	Lecture	AL3	2:00PM -3:15PM	TR	1404 Siebel Center for Comp Sci	Evans, C	Availability: CrossListOpen (Restricted) Part of Term: 1 Date Range: 08/24/26-12/09/26 Section Info: This section is for CS, CS&, CS+X and Computer Engineering majors. These restrictions remain in place throughout registration. Please view the following link for restrictions and release dates: http://go.cs.illinois.edu/csregister Restriction(s): Restricted to Computer Engineering or Computer Science or Statistics & Computer Science or Math & Computer Science or Computer Sci & Linguistics or Computer Sci & Anthropology or Computer Sci & Astronomy or Computer Sci & Chemistry or Computer Science&Crop Sciences or Computer Science and Music or Computer Science & Economics or Computer Science & Advertising or Computer Science & Geog & GIS or Computer Science & Philosophy or Computer Sci & Animal Sci or Computer Science & Education or Computer Science and Physics or ComputerScience&Bioengineering major(s). Restricted to Undergrad - Urbana-Champaign.
72281	Lecture	AL4	2:00PM -3:15PM	TR	1404 Siebel Center for Comp Sci	Evans, C	Availability: Closed Part of Term: 1 Date Range: 08/24/26-12/09/26 Section Info: This section is for CS minors, NON CS majors, and general campus. These restrictions remain in place throughout registration. Restriction(s): Restricted to Undergrad - Urbana-Champaign. Not intended for CS and blended CS majors students.
71541	Laboratory-Discussion	BD1	4:00PM -4:50PM	F	0035 Campus Instructional Facility	Gonzalez, D	Availability: Open (Restricted) Part of Term: 1 Date Range: 08/24/26-12/09/26 Section Info: Students enrolling in a GL lecture must also select a GD discussion. Restriction(s): Restricted to Undergrad - Urbana-Champaign.
71734	Laboratory-Discussion	BD2	3:00PM -3:50PM	F	0035 Campus Instructional Facility	Gonzalez, D	Availability: Open (Restricted) Part of Term: 1 Date Range: 08/24/26-12/09/26 Section Info: Students enrolling in a GL lecture must also select a GD discussion. Restriction(s): Restricted to Undergrad - Urbana-Champaign.
30102	Lecture	BL1	2:00PM -2:50PM	MWF	100 Noyes Laboratory	Gonzalez, D	Availability: CrossListOpen (Restricted) Part of Term: 1 Date Range: 08/24/26-12/09/26 Section Info: This section is for CS, CS&, CS+X and Computer Engineering majors only. These restrictions remain in place throughout registration. Please view the following link for restrictions and release dates: http://go.cs.illinois.edu/csregister Restriction(s): Restricted to Computer Engineering or Computer Science or Statistics & Computer Science or Math & Computer Science or Computer Sci & Anthropology or Computer Sci & Astronomy or Computer Sci & Chemistry or Computer Sci & Linguistics or Computer Science&Crop Sciences or Computer Science and Music or Computer Science & Economics or Computer Science & Advertising or Computer Science & Geog & GIS or Computer Science & Philosophy or Computer Sci & Animal Sci or Computer Science & Education or Computer Science and Physics or ComputerScience&Bioengineering major(s). Restricted to Undergrad - Urbana-Champaign.
72280	Lecture	BL2	2:00PM -2:50PM	MWF	100 Noyes Laboratory	Gonzalez, D	Availability: CrossListOpen (Restricted) Part of Term: 1 Date Range: 08/24/26-12/09/26 Section Info: This section is for CS minors, NON CS majors, and general campus. These restrictions remain in place throughout registration. Restriction(s): Restricted to Undergrad - Urbana-Champaign. Not intended for CS and blended CS majors students.