
Forallx - An Introduction to Formal Logic (Annotated)
Enriched Edition. An Accessible Guide to Symbolic Reasoning, Predicate Logic, Truth Tables, Proofs, and SemanticsBy P.D. MagnusLength6h 14m
About this audiobook
Forallx: An Introduction to Formal Logic is a lucid, rigorous, and unusually accessible introduction to the central tools of modern symbolic logic. Moving from arguments and validity to truth-functional logic, quantification, formal proofs, and semantics, the book combines precision with pedagogical economy. Its style is plain without being simplistic, situating itself within the analytic tradition of logic textbooks while distinguishing itself through open accessibility, clear notation, and an emphasis on practice over historical ornament. P. D. Magnus, a philosopher noted for work in logic, philosophy of science, and the open-education movement, wrote Forallx with an evident concern for both intellectual seriousness and public availability. His academic background informs the book's careful treatment of formal systems, while his commitment to freely usable educational materials helps explain its direct structure, modular design, and adaptability for classroom use. This book is highly recommended for students beginning formal logic, instructors seeking a reliable open textbook, and independent readers who want disciplined entry into symbolic reasoning. It rewards close study, develops genuine technical competence, and offers a strong foundation for philosophy, mathematics, computer science, and any field requiring clarity about inference and proof.
This enriched edition has been carefully crafted to add value to your reading experience.
- A succinct Introduction situates the work's timeless appeal and themes.
- The Synopsis outlines the central plot, highlighting key developments without spoiling critical twists.
- A detailed Historical Context immerses you in the era's events and influences that shaped the writing.
- A thorough Analysis dissects symbols, motifs, and character arcs to unearth underlying meanings.
- Reflection questions prompt you to engage personally with the work's messages, connecting them to modern life.
- Hand‐picked Memorable Quotes shine a spotlight on moments of literary brilliance.
- Interactive footnotes clarify unusual references, historical allusions, and archaic phrases for an effortless, more informed read.
Audiobook details
GenrePhilosophy
Length6 hrs 14 mins
Narrated byListen with 1,000+ voices
FormateBook with Audio
Publish dateDec 18, 2023
LanguageEnglish
Table of contents
1Forallx - An Introduction to Formal Logic (Annotated)
26From sentences to predicates
2Introduction
27Building blocks of QL
3Synopsis
28Quantifiers
4Historical Context
29Translating to QL
51 What is logic?
30Sentences of QL
Show all chaptersShow less
6Arguments
31Identity
7Sentences
32Practice Exercises
8Two ways that arguments can go wrong
335 Formal semantics
9Deductive validity
34Semantics for SL
10Other logical notions
35Interpretations and models in QL
11Formal languages
36Semantics for identity
12Practice Exercises
37Working with models
132 Sentential logic
38Truth in QL
14Sentence letters
39Practice Exercises
15Connectives
406 Proofs
16Other symbolization
41Basic rules for SL
17Sentences of SL
42Derived rules
18Practice Exercises
43Rules of replacement
193 Truth tables
44Rules for quantifiers
20Truth-functional connectives
45Rules for identity
21Complete truth tables
46Proof strategy
22Using truth tables
47Proof-theoretic concepts
23Partial truth tables
48Proofs and models
24Practice Exercises
49Soundness and completeness
254 Quantified logic
50Practice Exercises