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TrevTutor provides people around the world with a free, high-quality university education in mathematics, linguistics, and more. With both university-style lecture videos and quick problem-solving videos, your understanding of difficult material should greatly improve from investing time here. Currently we specialize in discrete mathematics, linguistics, probability and statistics, and linear algebra.

TrevTutor is created and managed by only one individual, TrevTutor himself.

Inflections, Derivations, and Word Formation Processes

Inflections, Derivations, and Word Formation Processes
Morphemes, Words, Affixes, and Word Trees

Morphemes, Words, Affixes, and Word Trees
Ambiguity and Sentence Relations

Ambiguity and Sentence Relations
Thematic Roles and Word Relations

Thematic Roles and Word Relations
Learn to Draw Syntactic Trees! (No X-Bar Theory)

Learn to Draw Syntactic Trees! (No X-Bar Theory)
Doing Grammar (Max Morenberg) The Complete Course

Doing Grammar (Max Morenberg) The Complete Course
Constituents and Constituency Tests

Constituents and Constituency Tests
The Basics of Syntax! Subjects, Predicates, and Word Categories

The Basics of Syntax! Subjects, Predicates, and Word Categories
Phonological Features

Phonological Features
Phonological Processes (Assimilation, Dissimilation, Epenthesis...)

Phonological Processes (Assimilation, Dissimilation, Epenthesis...)
How To Solve Phonology Problems (Phonemes, Allophones, and Data Sets)

How To Solve Phonology Problems (Phonemes, Allophones, and Data Sets)
How to Construct Syllables with the Maximum Onset Principle

How to Construct Syllables with the Maximum Onset Principle
Phonotactics! What's an Acceptable Syllable?

Phonotactics! What's an Acceptable Syllable?
Suprasegmentals! Tone, Intonation, Stress, and Pitch

Suprasegmentals! Tone, Intonation, Stress, and Pitch
Learn the IPA for English Vowels and Diphthongs!

Learn the IPA for English Vowels and Diphthongs!
Learn the IPA for English Consonants!

Learn the IPA for English Consonants!
Discount Factor [Financial Mathematics]

Discount Factor [Financial Mathematics]
Accumulation Problems [Financial Mathematics]

Accumulation Problems [Financial Mathematics]
Compound Interest [Financial Mathematics]

Compound Interest [Financial Mathematics]
Simple Interest [Financial Mathematics]

Simple Interest [Financial Mathematics]
Accumulation and Amount Function [Financial Mathematics]

Accumulation and Amount Function [Financial Mathematics]
Introduction to Linguistics: The Complete Crash Course

Introduction to Linguistics: The Complete Crash Course
Syntax: The Complete Crash Course

Syntax: The Complete Crash Course
NACLO 2019 (C) Here in One Hand

NACLO 2019 (C) Here in One Hand
Natural Deductive Proofs in Modal Logic (Diamond Out)

Natural Deductive Proofs in Modal Logic (Diamond Out)
Natural Deductive Proofs in Modal Logic (Box In, Box Out)

Natural Deductive Proofs in Modal Logic (Box In, Box Out)
NACLO 2023 (D) For The Sake of Their House

NACLO 2023 (D) For The Sake of Their House
LSAT Prep Test 90 Game 1 Analytical Reasoning

LSAT Prep Test 90 Game 1 Analytical Reasoning
[English Grammar] Wh-Clauses

[English Grammar] Wh-Clauses
[English Grammar] Noun Clauses

[English Grammar] Noun Clauses