Informal Logic by Douglas Walton | Excerpt

The following excerpt about the correlation-causation fallacy is from Professor Douglas Walton’s Informal Logic: A Pragmatic Approach. A study published in the journal Nature on May 13, 1999, found that babies who slept with a night-light on had an increased chance of developing myopia (nearsightedness) later in life. A subsequent study, co-authored by Professor Karla Zadnik of the […]

Formal vs. Informal Logic in LSAT Logical Reasoning

As we saw in my interview with Dr. Deborah Bennett (author of Logic Made Easy), both formal and informal logic are necessary in everyday life. Here are some examples of both formal and informal logic for those of you who haven’t had a chance to get your hands on a copy of Logic Made Easy yet. Formal logicFormal […]