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Faculty of Arts & Science · St. George

CSC165H1

Mathematical Expression and Reasoning for Computer Science

PrerequisiteNone listed
Total contact hours36 lecture · 12 tutorial
Evidence3 terms · 13 papers

What was the average?

C+

2.43 GPA across 3 observed terms. Most recent: Winter 2026.

How is it graded?

Not yet verified

No syllabus we can lawfully use has been verified for this course.

How confident is this?

Med

A small number of terms, so read it as a range.

From the calendar

Official source · Faculty of Arts & Science

Introduction to abstraction and rigour. Informal introduction to logical notation and reasoning. Understanding, using and developing precise expressions of mathematical ideas, including definitions and theorems. Structuring proofs to improve presentation and comprehension. General problem-solving techniques. Representation of floating-point numbers. Running time analysis of iterative programs. Formal definition of Big-Oh. Diagonalization, the Halting Problem, and some reductions. Unified approaches to programming and theoretical problems.

Prerequisite
None listed
Exclusions
CSC111H1CSC236H1CSC236H5CSC240H1CSCA67H3CSCB36H3MAT102H5MATA67H3
Contact hours
36 lecture · 12 tutorial
Total scheduled hours for the course, not per week.

What people actually got

Last observed Winter 2026
C+

2.43 GPA

3 terms observed

n = 3student contributedSt. George offerings only

This is a student-contributed aggregate, not an official University of Toronto record. It is also not a measure of how hard the course is — a course average moves with who enrols in it, not only with the material.

Per-term figures stay hidden until each term clears five contributors. 3 observations can support one honest number; they cannot support 3.

How well we know this course

2015–2023

Pyko’s archive holds 40 documents for CSC165H1, across 8 years between 2015 and 2023.

5
Final exams
8
Midterms
5
Solution sets
4
Assignments
8
Problem sets
2
Lecture notes
5
Tutorial material
3
Handouts

Both a midterm and a final appear in what we hold, so this course has historically been assessed on both rather than on a single end-of-term paper.

Counts, not a library. Pyko does not host or distribute course files, and this page is not an offer to supply one — the archive is what lets these pages describe how a course is assessed, which matters most where no syllabus has been verified.

What we don’t have yet

Assessment weightingNo syllabus we can lawfully use has been verified for this offering. Contribute yours and the breakdown appears here.
Per-term breakdownHeld back deliberately. Splitting 3 observations across terms would be false precision.
Instructor-level detailAverages are not split by instructor. At these sample sizes the difference between sections is noise, not signal.

Source ledger

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Sources behind every claim on this page
ClaimSourceCapturedStatus
Course description, prerequisites, exclusions, contact hoursFaculty of Arts & Science2026-07-25public fact
Historical average across 3 termsStudent contributions, consented2026-07-25user contributed aggregate
40 archived documents, 2015-2023Pyko archive2026-07-25index only

Page last verified 2026-07-25. A claim whose source moves is withdrawn before it goes stale.

What this opens up

5 courses list CSC165H1 as a prerequisite

Listing a course here means it names CSC165H1 among its prerequisites — often as one of several ways to satisfy the same requirement, so this is what CSC165H1 makes available, not what it alone guarantees.

Around this course

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CSC165H1 average & past exams — UofT | Pyko