Intuitionism: An Introduction

a₁ admissible sequence Akad algebra Amsterdam analogous arithmetic asserted axioms b₁ belongs bounded function canonical number-generator Cauchy sequence choice closed located pointspecies completion of f(x components condition contains continuum contradiction convergent deduced defined Definition denote detachable subspecies digits element elementary domain equations equivalent example exists F-inference fan-theorem finitary spread finite number fo(x follows formal system formula function f(x Griss Heyting Hilbert space implies impossible Indagationes math Infinitely proceeding sequences integer intersection intuitionism intuitionistic logic intuitionistic mathematics Intuitionistische K-barred L. E. J. Brouwer least one value lemma matical means measurable functions measurable region metafunction metamathematics method natural number negation Negationless notion nth lattice-point order relation P₁ predicate calculus Proc Proof properties propositional calculus Q is measurable rational numbers rational point real number-generators real numbers Remark satisfies sense species of real summable suppose theory true twin primes vectors