Categories
 Numbers in Wonderland (4)
 paraclimbing (7)
 Personal (6)
 Philosophy of Mathematics (8)
 Philosophy of Physics (6)
 Probability (4)
 Ruimtetijd filosofie (1)
 space (1)
 spacetime (1)
 Travels (7)

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Paraclimbing Edinburgh
In September I competed for the IFSC Paraclimbing Worldcup in Edinburgh (UK). The two qualification routes went well, but in the finals I fell from the third grip (the grip I’m sitting on in the picture). But I had a … Continue reading
Posted in paraclimbing, Personal, Travels
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Do Mathematicians Discover or Create?
“Mathematical proof, according to the intuitionist, shouldn’t be based on the metaphysical assumption that the truth is in a sense ‘binary’ (that propositions must be either true or false).” Continue reading
Posted in Philosophy of Mathematics
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Paraclimbing in Imst
Last month* I participated in a paraclimbing competition in Imst, Austria. The wall which we climbed was situated between the beautiful Tiroler mountains. In the movie below you can see my attempt at climbing the second of the six routes … Continue reading
Posted in paraclimbing, Travels
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What Is Mathematics?
Mathematics is a language. More specifically, mathematics is the language that scientists use to organise and order observations. For example, physicists may describe falling stones in terms of mathematical concepts like parabolas and perfect spheres and sociologists describe their observations … Continue reading
Posted in Philosophy of Mathematics
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PhD Dissertation
I will be defending my PhD dissertation on 13/07/2017 in Utrecht. Below you can find the documents which have kept me busy the past few years: Preface (English) Samenvatting (Nederlands) Gearfetting (Frysk) Complete Dissertation
Posted in Philosophy of Mathematics, Philosophy of Physics, Probability
Tagged Kant, mathematics, physics, Probability
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The White Rabbit’s Watch
Alice and the Friendly Minotaur have decided to go on a search for the Architect. Alice wants to ask the Architect – who designed the Minotaur’s labyrinth – whether numbers were used in making the labyrinth’s design. She hopes that … Continue reading
Posted in Numbers in Wonderland
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Wonderland without Numbers?
Previously in ‘Numbers in Wonderland’ Alice followed the Friendly Minotaur as he walked deeper into the forest. Any other little girl would have been at least a bit frightened by the shape of the large beast and the shadows cast … Continue reading
Alice and the Friendly Minotaur
Previously in ‘Numbers in Wonderland‘ ‘I wonder what would be left,’ Alice thought to herself, ‘if I take five apples and throw away the apples’. ‘What would it feel like to have five in my hands?’ I guess it would … Continue reading
Mouthguard
I grind my teeth. Even when I’m not thinking about very difficult things – such as what present to give my mother for her birthday – I scrape the teeth of my lower jaw with my upper teeth. The dentist kindly … Continue reading
Posted in paraclimbing, Personal
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Numbers in Wonderland
After following the White Rabbit down the rabbithole and meeting all kinds of strange and wondrous animals, Alice finds herself at the mad tea party. Her three companions – the Hatter, the Dormouse and the March Hare – keep asking … Continue reading