diff --git a/ch10.asciidoc b/ch10.asciidoc
index 6d92d9b4..6fbc41c4 100644
--- a/ch10.asciidoc
+++ b/ch10.asciidoc
@@ -1020,7 +1020,7 @@ Technical debt:: Because soft forks are more technically complex than a hard for
 
 Validation relaxation:: Unmodified clients see transactions as valid, without evaluating the modified consensus rules. In effect, the unmodified clients are not validating using the full range of consensus rules, as they are blind to the new rules. This applies to NOP-based upgrades, as well as other soft fork upgrades.
 
-Irreversible upgrades:: Because soft forks create transactions with additional consensus constraints, they become irreversible upgrades in practice. If a soft fork upgrade were to be reversed after being activated, any transactions created under the new rules could result in a loss of funds under the old rules. For example, if a CLTV transaction is evaluated under the old rules, there is no timelock constraint and it can be spent whenever. Therefore, critics contend that a failed soft fork that had to be reversed because of a bug would almost certainly lead to loss of funds.((("", startref="Crule10")))
+Irreversible upgrades:: Because soft forks create transactions with additional consensus constraints, they become irreversible upgrades in practice. If a soft fork upgrade were to be reversed after beings activated, any transactions created under the new rules could result in a loss of funds under the old rules. For example, if a CLTV transaction is evaluated under the old rules, there is no timelock constraint and it can be spent at any time. Therefore, critics contend that a failed soft fork that had to be reversed because of a bug would almost certainly lead to loss of funds.((("", startref="Crule10")))
 
 [[softforksignaling]]
 === Soft Fork Signaling with Block Version
diff --git a/ch12.asciidoc b/ch12.asciidoc
index 63f8f425..af90e2b1 100644
--- a/ch12.asciidoc
+++ b/ch12.asciidoc
@@ -59,7 +59,7 @@ Proof-of-Existence (Digital Notary):: ((("digital notary services")))((("Proof o
 
 Kickstarter (Lighthouse):: Consistency + Atomicity + Integrity. If you sign one input and the output (Integrity) of a fundraiser transaction, others can contribute to the fundraiser but it cannot be spent (Atomicity) until the goal (output value) is funded (Consistency).
 
-Payment Channels:: ((("payment (state) channels", "building blocks (primitives) used in")))Quorum of Control + Timelock + No Double Spend + Nonexpiration + Censorship Resistance + Authorization. A multisig 2-of-2 (Quorum) with a timelock (Timelock) used as the "settlement" transaction of a payment channel can be held (Nonexpiration) and spent whenever (Censorship Resistance) by either party (Authorization). The two parties can then create commitment transactions that double-spend (No Double-Spend) the settlement on a shorter timelock (Timelock).
+Payment Channels:: ((("payment (state) channels", "building blocks (primitives) used in")))Quorum of Control + Timelock + No Double Spend + Nonexpiration + Censorship Resistance + Authorization. A multisig 2-of-2 (Quorum) with a timelock (Timelock) used as the "settlement" transaction of a payment channel can be held (Nonexpiration) and spent at any time (Censorship Resistance) by either party (Authorization). The two parties can then create commitment transactions that double-spend (No Double-Spend) the settlement on a shorter timelock (Timelock).
 
 === Colored Coins