Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A new graphical calculus of proofs   We offer a simple graphical representation for proofs of intuitionistic
logic, which is inspired by proof nets and interaction nets (two formalisms
originating in linear logic). This graphical calculus of proofs inherits good
features from each, but is not constrained by them. By the Curry-Howard
isomorphism, the representation applies equally to the lambda calculus,
offering an alternative diagrammatic representation of functional computations.

19
The categories of this paper are: eess
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex
4
The categories of this paper are: cond-mat
25
The categories of this paper are: patt-sol
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
5
The categories of this paper are: gr-qc
16
The categories of this paper are: stat
21
The categories of this paper are: adap-org
18
The categories of this paper are: econ
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
35
The categories of this paper are: mtrl-th