From bbe73d0893df4b2485299e41e0398f4ab757a3fa Mon Sep 17 00:00:00 2001
From: Daira Hopwood
The leaves of the MMR at block diff --git a/zip-0221.rst b/zip-0221.rst index 4a488856..17a1d9bb 100644 --- a/zip-0221.rst +++ b/zip-0221.rst @@ -170,7 +170,7 @@ Specification For a block :math:`B_n` at height :math:`n > 0` in a given block chain, define the "preceding network upgrade height" :math:`x` of :math:`B_n` to be the last network -upgrade activation height in the chain that is less than :math:`n`. (For this definion, +upgrade activation height in the chain that is less than :math:`n`. (For this definition, block height :math:`0` is considered to be the height of a network upgrade activation. The preceding network upgrade height of the genesis block is undefined.)