RestrictedSumset.lean`

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Project sources: Pinned project documentation, Formal Conjectures paper, arXiv v1

1 declarations, 0 contain sorry, 0 declared as axioms

Restricted sumsets

This file defines the restricted sumset $S \hat{+} S$ for a finite set $S$.

Imports (3)

Imported by 1 file

FormalConjecturesForMathlib.lean

def Finset.restrictedSumset The restricted sumset of a set $S$, denoted $S \hat{+} S$, is the set $\lbrace s_1 + s_2 : s_1, s_2 \in S, s_1 \neq s_2 \rbrace$ line 39 source
Source documentation
The restricted sumset of a set $S$, denoted $S \hat{+} S$, is the set $\lbrace s_1 + s_2 : s_1, s_2 \in S, s_1 \neq s_2 \rbrace$.

standard axioms: Classical.choice, Quot.sound, propext what this means
Statement uses: Add, DecidableEq, Finset
Proof uses: Finset.image, Prod, HAdd.hAdd, Prod.fst, Prod.snd, Finset.offDiag
1 instances, coercions and auxiliary constants left out.
```
def restrictedSumset (S : Finset α) : Finset α :=
…
```