--- a/src/LazyTensors/lazy_tensor_operations.jl	Tue Nov 12 18:15:27 2024 +0100
+++ b/src/LazyTensors/lazy_tensor_operations.jl	Thu Jan 23 23:22:11 2025 +0100
@@ -169,10 +169,10 @@
     )
 end
 
-InflatedTensor(before::IdentityTensor, tm::LazyTensor{T}) where T = InflatedTensor(before,tm,IdentityTensor{T}())
-InflatedTensor(tm::LazyTensor{T}, after::IdentityTensor) where T = InflatedTensor(IdentityTensor{T}(),tm,after)
+InflatedTensor(before::IdentityTensor, tm::LazyTensor) = InflatedTensor(before,tm,IdentityTensor{eltype(tm)}())
+InflatedTensor(tm::LazyTensor, after::IdentityTensor) = InflatedTensor(IdentityTensor{eltype(tm)}(),tm,after)
 # Resolve ambiguity between the two previous methods
-InflatedTensor(I1::IdentityTensor{T}, I2::IdentityTensor{T}) where T = InflatedTensor(I1,I2,IdentityTensor{T}())
+InflatedTensor(I1::IdentityTensor, I2::IdentityTensor) = InflatedTensor(I1,I2,IdentityTensor{promote_type(eltype(I1), eltype(I2))}())
 
 # TODO: Implement some pretty printing in terms of ⊗. E.g InflatedTensor(I(3),B,I(2)) -> I(3)⊗B⊗I(2)
 
@@ -263,7 +263,7 @@
     return itm1∘itm2
 end
 
-LazyOuterProduct(t1::IdentityTensor{T}, t2::IdentityTensor{T}) where T = IdentityTensor{T}(t1.size...,t2.size...)
+LazyOuterProduct(t1::IdentityTensor, t2::IdentityTensor) = IdentityTensor{promote_type(eltype(t1),eltype(t2))}(t1.size...,t2.size...)
 LazyOuterProduct(t1::LazyTensor, t2::IdentityTensor) = InflatedTensor(t1, t2)
 LazyOuterProduct(t1::IdentityTensor, t2::LazyTensor) = InflatedTensor(t1, t2)