Jon Pretty on Twitter: "Attendees to my @milanoscala talk today will have been happy not to have heard the words "covariant" or "contravariant" once (I think)!"

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1. Jon Pretty‏ @propensive 9 May 2015
  @PaulTypes I might have pre-numbed them all at the conference yesterday with my type inference talk. Surprised so many turned up, actually.
  
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1. Jon Pretty‏ @propensive 9 May 2015
  @PaulTypes I'm staying to understand it. Maybe one day I'll write it up. Currently it's only in presentation form so easy to waffle through.
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1. Jon Pretty‏ @propensive 9 May 2015
  @PaulTypes *starting
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1. Jon Pretty‏ @propensive 9 May 2015
  .@PaulTypes Jazztyping.
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