package tezos-protocol-alpha

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Tezos protocol alpha package

Install

Dune Dependency

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Authors

T

Tezos devteam

Maintainers

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contact@tezos.com

Sources

tezos-18.0.tar.gz

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doc/tezos_raw_protocol_alpha/Tezos_raw_protocol_alpha/Dependent_bool/index.html

Module `Tezos_raw_protocol_alpha.Dependent_bool`Source

Dependent booleans

Sourcetype no = private

| DNo

Sourcetype yes = private

| DYes

Sourcetype _ dbool =

| No : no dbool
| Yes : yes dbool

'b dbool is a boolean whose value depends on its type parameter 'b. yes dbool can only be Yes. no dbool can only be No.

Sourcetype ('a, 'b, 'r) dand =

| NoNo : (no, no, no) dand
| NoYes : (no, yes, no) dand
| YesNo : (yes, no, no) dand
| YesYes : (yes, yes, yes) dand

('a, 'b, 'r) dand is a witness of the logical conjunction of dependent booleans. 'r is the result of 'a and 'b.

Sourcetype ('a, 'b) ex_dand =

| Ex_dand : ('a, 'b, _) dand -> ('a, 'b) ex_dand

Sourceval dand : 'a dbool -> 'b dbool -> ('a, 'b) ex_dand

Logical conjunction of dependent booleans.

Sourceval dbool_of_dand : ('a, 'b, 'r) dand -> 'r dbool

Result of the logical conjunction of dependent booleans.

Sourcetype (_, _) eq =

| Eq : ('a, 'a) eq

Type equality witness.

Sourceval merge_dand : ('a, 'b, 'c1) dand -> ('a, 'b, 'c2) dand -> ('c1, 'c2) eq

merge_dand proves that the type dand represents a function, i.e. that there is a unique 'r such that ('a, 'b, 'r) dand is inhabited for a given 'a and a given 'b.