Critical Thinking glossary · taught inside Certificate in Critical Thinking

What is Logical Fallacy?

An error in reasoning that renders an argument invalid or unsound. Recognising these flaws is essential for evaluating the strength of claims and avoiding persuasive but incorrect conclusions in professional discussions and decision-making processes within organisational settings.

2540%salary premium for certified Critical Thinking capability
2.7xfaster promotion for certified professionals
4.9learner rating on the parent programme
20days to your first credential
The definition

Logical Fallacy,
explained properly.

Not a flashcard answer — the working meaning, where you'll meet it, and why professionals who use it precisely get taken more seriously.

An error in reasoning that renders an argument invalid or unsound. Recognising these flaws is essential for evaluating the strength of claims and avoiding persuasive but incorrect conclusions in professional discussions and decision-making processes within organisational settings.

Understanding Logical Fallacy on paper is one thing — using it confidently at work is another. In professional settings, this is the kind of term that separates people who talk about Critical Thinking from people who are trusted to make decisions in it. Recruiters and managers listen for it in interviews, and colleagues notice immediately whether you use it precisely or vaguely.

At OnlineUni, Logical Fallacy is taught in full working context inside Certificate in Critical Thinking — applied to real Critical Thinking scenarios, not memorised in isolation.

Employer demand for Critical Thinking skills — indexed growth since 2019
Indicative index of skill mentions in professional job postings (2019 = 1)
20191x20201.3x20211.9x20222.6x20233.9x20245.7x20258x202610.9x
Your move

What mastering it
is worth.

Learning terms one definition at a time builds vocabulary. Completing the programme builds what employers pay for: certified capability.

Certified professionals are promoted faster, shortlisted more often and paid a documented premium over equally experienced but uncertified colleagues — and the premium compounds with seniority, so the earlier you certify, the longer it pays.

Fluency, not flashcards

Logical Fallacy and every related concept taught in working context, so you can use them under pressure.

A verifiable credential

A shareable digital certificate in Critical Thinking for LinkedIn and your CV the day you pass.

Salary leverage

Certified Critical Thinking capability is exactly what the uplift figures here are paid for.

Momentum

Self-paced, online, from £79 — most learners finish their first certificate within two months.

Typical salary uplift after completing a professional certificate
Indicative ranges from published continuing-education salary studies, by career stage
Entry level+18%Mid-career+26%Senior+31%Leadership+38%
The programme where Logical Fallacy lives

Certificate in Critical Thinking

A self-paced online Certificate programme with 3 modules, an online assessment and a verifiable digital certificate you can share on LinkedIn the day you pass.

  • 6,303 professionals enrolled
  • 4.9★ learner rating
  • Study from anywhere · no fixed timetable
  • Fast-track option: finish in as few as 20 days
£199 £79
View programme → Enrol now 🔒 Secure checkout · ⚡ Instant access
Keep reading

More terms from
this glossary.

Every term below is taught inside the same programme — read them all free, then study them properly.

Stop looking terms up. Start being the one who explains them.

Certificate in Critical Thinking covers Logical Fallacy and everything around it — from £79, entirely online.

Momentum is the rarest thing in professional learning.

You have it today. Most people never get it back once they've let it go.

Chat with Admissions

OnlineUni Admissions

Tell us where you want your career to go, and we'll find you the right programme.

Chat with AdmissionsCourse guidance, fees, and enrolment help from our team.
Available 24/7 Our admissions consultants are always online to help you choose.
OnlineUni · a TilGlobal brand

Tell us about yourself to get started

OnlineUni · a TilGlobal brand