Valid Argument with a False Conclusion

1. All shapes have sides.
2. A circle is a shape.
3. A circle has sides.

Sound Argument

1. If the road is made of dirt, then chickens will cross it.
2. The road is made of dirt.
3. Therefore, the chickens will cross it.

Weak Inductive Argument

1. Some clowns are nice.
2. It is a clown.
3. It is nice.

Strong Inductive Argument

1. The grass grows when I water it.
2. I watered the grass.
3. It will grow.