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Expression of type ExprTuple

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 ExprTuple, Lambda, P, Px, V, W, x
from proveit.linear_algebra import LinMap
from proveit.logic import Forall, InSet
In [2]:
# build up the expression from sub-expressions
expr = ExprTuple(Lambda([V, W], Forall(instance_param_or_params = [P], instance_expr = Forall(instance_param_or_params = [x], instance_expr = InSet(Px, W), domain = V), domain = LinMap(V, W))))
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())
\left(\left(V, W\right) \mapsto \left[\forall_{P \in \mathcal{L}\left(V, W\right)}~\left[\forall_{x \in V}~\left(P\left(x\right) \in W\right)\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
0ExprTuple1
1Lambdaparameters: 16
body: 2
2Operationoperator: 9
operand: 4
3ExprTuple4
4Lambdaparameter: 25
body: 6
5ExprTuple25
6Conditionalvalue: 7
condition: 8
7Operationoperator: 9
operand: 12
8Operationoperator: 20
operands: 11
9Literal
10ExprTuple12
11ExprTuple25, 13
12Lambdaparameter: 27
body: 14
13Operationoperator: 15
operands: 16
14Conditionalvalue: 17
condition: 18
15Literal
16ExprTuple24, 23
17Operationoperator: 20
operands: 19
18Operationoperator: 20
operands: 21
19ExprTuple22, 23
20Literal
21ExprTuple27, 24
22Operationoperator: 25
operand: 27
23Variable
24Variable
25Variable
26ExprTuple27
27Variable