English Composition 101: Argumentation - Logical Structure Deductive Syllogism Inductive Generalisation from Specifics Analogical Reasoning Causal Reasoning

Study Guide: Logical Structure

What It Is

Logical structure refers to the way writers organize their ideas to make a clear and convincing argument. It involves using reasoning and evidence to support a claim. For example, a student might write: "All students who attend college are more likely to get a job. I attend college, therefore I am more likely to get a job." This is an example of deductive reasoning, where a general statement is applied to a specific situation. Understanding logical structure is crucial for academic and professional writing, as it helps writers build strong arguments and persuade their audience.

Core Principles

• Deductive Reasoning: A syllogism is a type of deductive reasoning that involves a general statement, a specific statement, and a conclusion. Example: All humans are mortal. Socrates is human. Therefore, Socrates is mortal.
• Inductive Reasoning: Inductive reasoning involves making a general statement based on specific observations. Example: I have seen many birds fly south for the winter. Therefore, all birds probably fly south for the winter.
• Analogical Reasoning: Analogical reasoning involves making a comparison between two things to draw a conclusion. Example: Just as a car needs gasoline to run, a computer needs electricity to run.
• Causal Reasoning: Causal reasoning involves identifying the cause and effect of an event. Example: If I don't study for a test, I will probably fail.
• Thesis Statement: A thesis statement is a claim that answers the question or topic. It should be specific, clear, and arguable. Example: "College tuition should be free because it would increase access to education for low-income students."
• Claim: A claim is a statement that makes an assertion or argument. Example: "College tuition is too high."
• Evidence: Evidence is the information used to support a claim. Example: "According to a study, 75% of students who attend college graduate with a degree."
• Counterargument: A counterargument is a statement that challenges or opposes a claim. Example: "However, some might argue that free tuition would lead to a decrease in academic standards."
• Transition Words: Transition words are used to connect ideas between sentences or paragraphs. Example: "However," "in addition," "nevertheless."
• Punctuation: Punctuation is used to clarify the meaning of a sentence. Example: Using commas to separate items in a list.
• Citation: Citation is the process of giving credit to the original source of information. Example: Using MLA or APA format to cite sources.
• Definition: A definition is a statement that explains a term or concept. Example: "By 'free tuition,' I mean that students would not have to pay any fees to attend college."
• Example: An example is a specific instance used to illustrate a general point. Example: "For example, many students who attend college are able to get better jobs after graduation."
• Counterexample: A counterexample is a specific instance that challenges or opposes a general point. Example: "However, some students who attend college may not be able to get a job after graduation."

Common Writing Errors

• Error: "All students who attend college are more likely to get a job."
• Why it fails: This statement is too broad and lacks evidence to support it.
• Correction: "According to a study, 75% of students who attend college graduate with a degree and are more likely to get a job."
• Error: "However, some people might say that free tuition is a bad idea."
• Why it fails: This statement is too vague and lacks a clear argument.
• Correction: "However, some might argue that free tuition would lead to a decrease in academic standards, but I disagree because it would increase access to education for low-income students."
• Error: "I think that college tuition should be free because it would be nice."
• Why it fails: This statement lacks a clear argument and evidence to support it.
• Correction: "College tuition should be free because it would increase access to education for low-income students and would be a more equitable system."

Quick Application

• Scenario 1: You are arguing that college tuition should be free. Write a thesis statement.
• Model Answer: "College tuition should be free because it would increase access to education for low-income students and would be a more equitable system."
• Explanation: This thesis statement is clear, specific, and arguable, and it provides a roadmap for the rest of the essay.
• Scenario 2: You are writing an essay about the benefits of exercise. Use inductive reasoning to make a general statement based on specific observations.
• Model Answer: "I have seen many people who exercise regularly have more energy and are healthier. Therefore, I believe that exercise is beneficial for overall health."
• Explanation: This example uses inductive reasoning to make a general statement based on specific observations.
• Scenario 3: You are writing an essay about the causes of climate change. Use causal reasoning to identify the cause and effect of an event.
• Model Answer: "The burning of fossil fuels is the main cause of climate change, which leads to rising temperatures and more extreme weather events."
• Explanation: This example uses causal reasoning to identify the cause and effect of an event.

Last-Minute Revision

• Use transition words to connect ideas between sentences or paragraphs.
• Use punctuation to clarify the meaning of a sentence.
• Cite sources using MLA or APA format.
• Use definitions to explain technical terms or concepts.
• Use examples to illustrate a general point.
• Use counterexamples to challenge or oppose a general point.
• Use a clear and specific thesis statement that answers the question or topic.
• Use evidence to support a claim.
• Use a counterargument to challenge or oppose a claim.
• Use a roadmap to provide a clear structure for the essay.
• Use clear and concise language to avoid confusion.
• Use active voice to make the writing more engaging.
• Use a variety of sentence structures to avoid repetition.
• Use headings and subheadings to organize the essay.
• Use a conclusion to summarize the main points and reiterate the thesis statement.