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[Dijkstra] Refactor Epoch in Dijkstra to follow Conway #1244

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carlostome merged 2 commits into from
Jun 29, 2026
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[Dijkstra] Refactor Epoch in Dijkstra to follow Conway #1244

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Refactor Epoch in Dijkstra to follow Conway
carlostome Jun 25, 2026
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carlostome Jun 26, 2026
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12 changes: 6 additions & 6 deletions src/Ledger/Conway/Specification/Epoch.lagda.md
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Expand Up @@ -141,7 +141,7 @@ record NewEpochState : Type where
The formal specification utilizes the type `PoolDelegatedStake`{.AgdaDatatype}
in lieu of the derived type `PoolDistr`{.AgdaDatatype} (Figure 5, Shelley
specification [CVG19](#shelley-ledger-spec)). The latter can be computed from the
former by divinding the associated `Coin`{.AgdaDatatype} to each `KeyHash`{.AgdaDatatype}
former by dividing the associated `Coin`{.AgdaDatatype} to each `KeyHash`{.AgdaDatatype}
by the total stake in the map.

In addition, the formal specification omits the VRF key hashes in the
Expand Down Expand Up @@ -377,7 +377,7 @@ Relevant quantities are:
### Applying Reward Updates {#sec:applying-reward-updates}

This section defines the function `applyRUpd`{.AgdaFunction}, which applies a
`RewardUpdate`{.AgdaDatatype} to the `EpochState`{.AgdaFunction}.
`RewardUpdate`{.AgdaRecord} to the `EpochState`{.AgdaFunction}.

```agda
applyRUpd : RewardUpdate → EpochState → EpochState
Expand Down Expand Up @@ -406,7 +406,7 @@ applyRUpd rewardUpdate ⟦ ⟦ treasury , reserves ⟧ᵃ
## Stake Distributions {#sec:stake-distributions}

This section defines the functions
`calculatePoolDelegatedState`{.AgdaFunction},
`calculatePoolDelegatedStake`{.AgdaFunction},
`calculateVDelegDelegatedStake`{.AgdaFunction}, and
`mkStakeDistrs`{.AgdaFunction}, which calculates stake distributions
for voting purposes.
Expand Down Expand Up @@ -435,10 +435,10 @@ opaque
sd = aggregate₊ ((stakeCredentialsPerPool ∘ʳ (StakeOf ss ˢ)) ᶠˢ)
```

The function `calculatePoolDelegatedState`{.AgdaFunction} calculates the delegated
The function `calculatePoolDelegatedStake`{.AgdaFunction} calculates the delegated
stake to `SPOs`{.AgdaInductiveConstructor}. This function is used both in the
`EPOCH`{.AgdaDatatype} rule (via
`calculatePoolDelegatedStateForVoting`{.AgdaFunction}, see below) and in the
`calculatePoolDelegatedStakeForVoting`{.AgdaFunction}, see below) and in the
`NEWEPOCH`{.AgdaDatatype} rule.

```agda
Expand Down Expand Up @@ -582,7 +582,7 @@ private variable

The `EPOCH`{.AgdaDatatype} transition system updates several parts of the
`EpochState`{.AgdaDatatype}. We encapsulate these updates using Agda's module
system. This modularization reduces typechecking times and helps strucuturing
system. This modularization reduces typechecking times and helps structuring
proofs about properties of the `EPOCH`{.AgdaDatatype} transition system.

### Update Modules and Functions
Expand Down
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