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Expression of type Lambda

from the theory of proveit.linear_algebra.linear_maps

In [1]:
import proveit
# Automation is not needed when building an expression:
proveit.defaults.automation = False # This will speed things up.
proveit.defaults.inline_pngs = False # Makes files smaller.
%load_expr # Load the stored expression as 'stored_expr'
# import Expression classes needed to build the expression
from proveit import K, Lambda, V, W
from proveit.linear_algebra import LinMap, VecSpaces
from proveit.logic import Forall, InClass
In [2]:
# build up the expression from sub-expressions
sub_expr1 = VecSpaces(K)
expr = Lambda(K, Forall(instance_param_or_params = [V, W], instance_expr = InClass(LinMap(V, W), sub_expr1), domain = sub_expr1))
expr:
In [3]:
# check that the built expression is the same as the stored expression
assert expr == stored_expr
assert expr._style_id == stored_expr._style_id
print("Passed sanity check: expr matches stored_expr")
Passed sanity check: expr matches stored_expr
In [4]:
# Show the LaTeX representation of the expression for convenience if you need it.
print(stored_expr.latex())
K \mapsto \left[\forall_{V, W \underset{{\scriptscriptstyle c}}{\in} \textrm{VecSpaces}\left(K\right)}~\left(\mathcal{L}\left(V, W\right) \underset{{\scriptscriptstyle c}}{\in} \textrm{VecSpaces}\left(K\right)\right)\right]
In [5]:
stored_expr.style_options()
no style options
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0Lambdaparameter: 24
body: 1
1Operationoperator: 2
operand: 4
2Literal
3ExprTuple4
4Lambdaparameters: 15
body: 5
5Conditionalvalue: 6
condition: 7
6Operationoperator: 17
operands: 8
7Operationoperator: 9
operands: 10
8ExprTuple11, 21
9Literal
10ExprTuple12, 13
11Operationoperator: 14
operands: 15
12Operationoperator: 17
operands: 16
13Operationoperator: 17
operands: 18
14Literal
15ExprTuple19, 20
16ExprTuple19, 21
17Literal
18ExprTuple20, 21
19Variable
20Variable
21Operationoperator: 22
operand: 24
22Literal
23ExprTuple24
24Variable