| referring back to precedent course
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| What we were talking about last time is ... |
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| Where were we last time? Last time we had ... |
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| So I want to pick up where we were last time. |
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| Let's just remind ourselves for a moment where we were. |
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| We're going back to [Lecture 4 notes], because I think I have a little bit left on [Lecture 4 notes]. |
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| I want to go back a second to the end of last time. |
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| I just want to remind you of what I said the other day. |
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| Last class we talked about ... |
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| Let me start with a quick review of what we covered so far. |
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| In the first lecture we started out by looking at ... |
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