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modular:ordered_sets [2014/01/30 00:32] marje |
modular:ordered_sets [2014/01/31 01:07] marje |
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The symmetrical notion, the **greatest lower bound** (aka **infimum**) of $A$ is denoted $\inf A$. | The symmetrical notion, the **greatest lower bound** (aka **infimum**) of $A$ is denoted $\inf A$. | ||
</box> | </box> | ||
- | |||
- | <WRAP task> | ||
- | Exercises on suprema. TODO | ||
- | </WRAP> | ||
<box 100% round blue> | <box 100% round blue> | ||
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</box> | </box> | ||
- | <WRAP task> | + | |
- | Which of the following sets are lattices? | + | ----------------------------------------------------------------------------------------------------------------------------------------- |
- | </WRAP> | + |