The two most important types of logic on the LSAT are conditional and causal reasoning. Conditional reasoning may be phrased in various ways, but it can be essentially reduced to if-then statements.

The LSAT logical reasoning section asks about sufficient and necessary assumptions behind arguments. It's important to carefully distinguish these two kinds of questions. Each involves a different ...

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We have seen that we can deduce new conditionals from old. But where do we get conditionals to start with? Fortunately, we can get conditionals from our three principles. Premise (5) in the LSAT ...

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