logo

Expression of type Forall

from the theory of proveit.linear_algebra.tensors

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, i
from proveit.core_expr_types import V_1_to_i
from proveit.linear_algebra import TensorProd, VecSpaces
from proveit.logic import Forall, InClass
from proveit.numbers import NaturalPos
In [2]:
# build up the expression from sub-expressions
sub_expr1 = VecSpaces(K)
expr = Forall(instance_param_or_params = [K], instance_expr = Forall(instance_param_or_params = [i], instance_expr = Forall(instance_param_or_params = [V_1_to_i], instance_expr = InClass(TensorProd(V_1_to_i), sub_expr1), domain = sub_expr1), domain = NaturalPos))
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())
\forall_{K}~\left[\forall_{i \in \mathbb{N}^+}~\left[\forall_{V_{1}, V_{2}, \ldots, V_{i} \underset{{\scriptscriptstyle c}}{\in} \textrm{VecSpaces}\left(K\right)}~\left(\left(V_{1} {\otimes}  V_{2} {\otimes}  \ldots {\otimes}  V_{i}\right) \underset{{\scriptscriptstyle c}}{\in} \textrm{VecSpaces}\left(K\right)\right)\right]\right]
In [5]:
stored_expr.style_options()
namedescriptiondefaultcurrent valuerelated methods
with_wrappingIf 'True', wrap the Expression after the parametersNoneNone/False('with_wrapping',)
condition_wrappingWrap 'before' or 'after' the condition (or None).NoneNone/False('with_wrap_after_condition', 'with_wrap_before_condition')
wrap_paramsIf 'True', wraps every two parameters AND wraps the Expression after the parametersNoneNone/False('with_params',)
justificationjustify to the 'left', 'center', or 'right' in the array cellscentercenter('with_justification',)
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0Operationoperator: 10
operand: 2
1ExprTuple2
2Lambdaparameter: 41
body: 3
3Operationoperator: 10
operand: 5
4ExprTuple5
5Lambdaparameter: 31
body: 7
6ExprTuple31
7Conditionalvalue: 8
condition: 9
8Operationoperator: 10
operand: 14
9Operationoperator: 12
operands: 13
10Literal
11ExprTuple14
12Literal
13ExprTuple31, 15
14Lambdaparameters: 25
body: 16
15Literal
16Conditionalvalue: 17
condition: 18
17Operationoperator: 32
operands: 19
18Operationoperator: 20
operands: 21
19ExprTuple22, 35
20Literal
21ExprTuple23
22Operationoperator: 24
operands: 25
23ExprRangelambda_map: 26
start_index: 30
end_index: 31
24Literal
25ExprTuple27
26Lambdaparameter: 40
body: 28
27ExprRangelambda_map: 29
start_index: 30
end_index: 31
28Operationoperator: 32
operands: 33
29Lambdaparameter: 40
body: 34
30Literal
31Variable
32Literal
33ExprTuple34, 35
34IndexedVarvariable: 36
index: 40
35Operationoperator: 38
operand: 41
36Variable
37ExprTuple40
38Literal
39ExprTuple41
40Variable
41Variable