Theorem List for Quantum Logic Explorer - 301-400 *Has distinct variable
group(s)
Type | Label | Description |
Statement |
|
Theorem | nomcon0 301 |
Lemma for "Non-Orthomodular Models..." paper. (Contributed by NM,
7-Feb-1999.)
|
(a ≡0 b) = (b⊥ ≡0 a⊥ ) |
|
Theorem | nomcon1 302 |
Lemma for "Non-Orthomodular Models..." paper. (Contributed by NM,
7-Feb-1999.)
|
(a ≡1 b) = (b⊥ ≡2 a⊥ ) |
|
Theorem | nomcon2 303 |
Lemma for "Non-Orthomodular Models..." paper. (Contributed by NM,
7-Feb-1999.)
|
(a ≡2 b) = (b⊥ ≡1 a⊥ ) |
|
Theorem | nomcon3 304 |
Lemma for "Non-Orthomodular Models..." paper. (Contributed by NM,
7-Feb-1999.)
|
(a ≡3 b) = (b⊥ ≡4 a⊥ ) |
|
Theorem | nomcon4 305 |
Lemma for "Non-Orthomodular Models..." paper. (Contributed by NM,
7-Feb-1999.)
|
(a ≡4 b) = (b⊥ ≡3 a⊥ ) |
|
Theorem | nomcon5 306 |
Lemma for "Non-Orthomodular Models..." paper. (Contributed by NM,
7-Feb-1999.)
|
(a ≡ b) =
(b⊥ ≡ a⊥ ) |
|
Theorem | nom10 307 |
Part of Lemma 3.3(14) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
(a →0 (a ∩ b)) =
(a →1 b) |
|
Theorem | nom11 308 |
Part of Lemma 3.3(14) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
(a →1 (a ∩ b)) =
(a →1 b) |
|
Theorem | nom12 309 |
Part of Lemma 3.3(14) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
(a →2 (a ∩ b)) =
(a →1 b) |
|
Theorem | nom13 310 |
Part of Lemma 3.3(14) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
(a →3 (a ∩ b)) =
(a →1 b) |
|
Theorem | nom14 311 |
Part of Lemma 3.3(14) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
(a →4 (a ∩ b)) =
(a →1 b) |
|
Theorem | nom15 312 |
Part of Lemma 3.3(14) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
(a →5 (a ∩ b)) =
(a →1 b) |
|
Theorem | nom20 313 |
Part of Lemma 3.3(14) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
(a ≡0 (a ∩ b)) =
(a →1 b) |
|
Theorem | nom21 314 |
Part of Lemma 3.3(14) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
(a ≡1 (a ∩ b)) =
(a →1 b) |
|
Theorem | nom22 315 |
Part of Lemma 3.3(14) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
(a ≡2 (a ∩ b)) =
(a →1 b) |
|
Theorem | nom23 316 |
Part of Lemma 3.3(14) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
(a ≡3 (a ∩ b)) =
(a →1 b) |
|
Theorem | nom24 317 |
Part of Lemma 3.3(14) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
(a ≡4 (a ∩ b)) =
(a →1 b) |
|
Theorem | nom25 318 |
Part of Lemma 3.3(14) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
(a ≡ (a
∩ b)) = (a →1 b) |
|
Theorem | nom30 319 |
Part of Lemma 3.3(14) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
((a ∩ b)
≡0 a) = (a →1 b) |
|
Theorem | nom31 320 |
Part of Lemma 3.3(14) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
((a ∩ b)
≡1 a) = (a →1 b) |
|
Theorem | nom32 321 |
Part of Lemma 3.3(14) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
((a ∩ b)
≡2 a) = (a →1 b) |
|
Theorem | nom33 322 |
Part of Lemma 3.3(14) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
((a ∩ b)
≡3 a) = (a →1 b) |
|
Theorem | nom34 323 |
Part of Lemma 3.3(14) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
((a ∩ b)
≡4 a) = (a →1 b) |
|
Theorem | nom35 324 |
Part of Lemma 3.3(14) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
((a ∩ b)
≡ a) = (a →1 b) |
|
Theorem | nom40 325 |
Part of Lemma 3.3(15) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
((a ∪ b)
→0 b) = (a →2 b) |
|
Theorem | nom41 326 |
Part of Lemma 3.3(15) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
((a ∪ b)
→1 b) = (a →2 b) |
|
Theorem | nom42 327 |
Part of Lemma 3.3(15) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
((a ∪ b)
→2 b) = (a →2 b) |
|
Theorem | nom43 328 |
Part of Lemma 3.3(15) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
((a ∪ b)
→3 b) = (a →2 b) |
|
Theorem | nom44 329 |
Part of Lemma 3.3(15) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
((a ∪ b)
→4 b) = (a →2 b) |
|
Theorem | nom45 330 |
Part of Lemma 3.3(15) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
((a ∪ b)
→5 b) = (a →2 b) |
|
Theorem | nom50 331 |
Part of Lemma 3.3(15) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
((a ∪ b)
≡0 b) = (a →2 b) |
|
Theorem | nom51 332 |
Part of Lemma 3.3(15) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
((a ∪ b)
≡1 b) = (a →2 b) |
|
Theorem | nom52 333 |
Part of Lemma 3.3(15) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
((a ∪ b)
≡2 b) = (a →2 b) |
|
Theorem | nom53 334 |
Part of Lemma 3.3(15) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
((a ∪ b)
≡3 b) = (a →2 b) |
|
Theorem | nom54 335 |
Part of Lemma 3.3(15) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
((a ∪ b)
≡4 b) = (a →2 b) |
|
Theorem | nom55 336 |
Part of Lemma 3.3(15) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
((a ∪ b)
≡ b) = (a →2 b) |
|
Theorem | nom60 337 |
Part of Lemma 3.3(15) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
(b ≡0 (a ∪ b)) =
(a →2 b) |
|
Theorem | nom61 338 |
Part of Lemma 3.3(15) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
(b ≡1 (a ∪ b)) =
(a →2 b) |
|
Theorem | nom62 339 |
Part of Lemma 3.3(15) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
(b ≡2 (a ∪ b)) =
(a →2 b) |
|
Theorem | nom63 340 |
Part of Lemma 3.3(15) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
(b ≡3 (a ∪ b)) =
(a →2 b) |
|
Theorem | nom64 341 |
Part of Lemma 3.3(15) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
(b ≡4 (a ∪ b)) =
(a →2 b) |
|
Theorem | nom65 342 |
Part of Lemma 3.3(15) from "Non-Orthomodular Models..." paper.
(Contributed by NM, 7-Feb-1999.)
|
(b ≡ (a
∪ b)) = (a →2 b) |
|
Theorem | go1 343 |
Lemma for proof of Mayet 8-variable "full" equation from 4-variable
Godowski equation. (Contributed by NM, 19-Nov-1999.)
|
((a ∩ b)
∩ (a →1 b⊥ )) = 0 |
|
Theorem | i2or 344 |
Lemma for disjunction of →2 . (Contributed by
NM, 5-Jul-2000.)
|
((a →2 c) ∪ (b
→2 c)) ≤ ((a ∩ b)
→2 c) |
|
Theorem | i1or 345 |
Lemma for disjunction of →1 . (Contributed by
NM, 5-Jul-2000.)
|
((c →1 a) ∪ (c
→1 b)) ≤ (c →1 (a ∪ b)) |
|
Theorem | lei2 346 |
"Less than" analogue is equal to →2
implication. (Contributed by NM,
28-Jan-2002.)
|
(a ≤2 b) = (a
→2 b) |
|
Theorem | i5lei1 347 |
Relevance implication is less than or equal to Sasaki implication.
(Contributed by NM, 26-Jun-2003.)
|
(a →5 b) ≤ (a
→1 b) |
|
Theorem | i5lei2 348 |
Relevance implication is less than or equal to Dishkant implication.
(Contributed by NM, 26-Jun-2003.)
|
(a →5 b) ≤ (a
→2 b) |
|
Theorem | i5lei3 349 |
Relevance implication is less than or equal to Kalmbach implication.
(Contributed by NM, 26-Jun-2003.)
|
(a →5 b) ≤ (a
→3 b) |
|
Theorem | i5lei4 350 |
Relevance implication is less than or equal to non-tollens implication.
(Contributed by NM, 26-Jun-2003.)
|
(a →5 b) ≤ (a
→4 b) |
|
Theorem | id5leid0 351 |
Quantum identity is less than classical identity. (Contributed by NM,
4-Mar-2006.)
|
(a ≡ b)
≤ (a ≡0 b) |
|
Theorem | id5id0 352 |
Show that classical identity follows from quantum identity in OL.
(Contributed by NM, 4-Mar-2006.)
|
(a ≡ b) =
1 ⇒ (a ≡0 b) = 1 |
|
Theorem | k1-6 353 |
Statement (6) in proof of Theorem 1 of Kalmbach, Orthomodular
Lattices, p. 21. (Contributed by NM, 26-May-2008.)
|
x = ((x ∩
c) ∪ (x ∩ c⊥ ))
⇒ (x⊥ ∩ c) = ((x⊥ ∪ c⊥ ) ∩ c) |
|
Theorem | k1-7 354 |
Statement (7) in proof of Theorem 1 of Kalmbach, Orthomodular
Lattices, p. 21. (Contributed by NM, 26-May-2008.)
|
x = ((x ∩
c) ∪ (x ∩ c⊥ ))
⇒ (x⊥ ∩ c⊥ ) = ((x⊥ ∪ c) ∩ c⊥ ) |
|
Theorem | k1-8a 355 |
First part of statement (8) in proof of Theorem 1 of Kalmbach,
Orthomodular Lattices, p. 21. (Contributed by NM, 27-May-2008.)
|
x⊥ = ((x⊥ ∩ c) ∪ (x⊥ ∩ c⊥ )) & x ≤ c
& y
≤ c⊥ ⇒ x = ((x ∪
y) ∩ c) |
|
Theorem | k1-8b 356 |
Second part of statement (8) in proof of Theorem 1 of Kalmbach,
Orthomodular Lattices, p. 21. (Contributed by NM, 27-May-2008.)
|
y⊥ = ((y⊥ ∩ c) ∪ (y⊥ ∩ c⊥ )) & x ≤ c
& y
≤ c⊥ ⇒ y = ((x ∪
y) ∩ c⊥ ) |
|
Theorem | k1-2 357 |
Statement (2) in proof of Theorem 1 of Kalmbach, Orthomodular
Lattices, p. 21. (Contributed by NM, 27-May-2008.)
|
x = ((x ∩
c) ∪ (x ∩ c⊥ )) & y = ((y ∩
c) ∪ (y ∩ c⊥ )) & ((x ∩ c)
∪ (y ∩ c))⊥ = ((((x ∩ c)
∪ (y ∩ c))⊥ ∩ c) ∪ (((x
∩ c) ∪ (y ∩ c))⊥ ∩ c⊥ ))
⇒ ((x ∪ y)
∩ c) = ((x ∩ c)
∪ (y ∩ c)) |
|
Theorem | k1-3 358 |
Statement (3) in proof of Theorem 1 of Kalmbach, Orthomodular
Lattices, p. 21. (Contributed by NM, 27-May-2008.)
|
x = ((x ∩
c) ∪ (x ∩ c⊥ )) & y = ((y ∩
c) ∪ (y ∩ c⊥ )) & ((x ∩ c⊥ ) ∪ (y ∩ c⊥ ))⊥ =
((((x ∩ c⊥ ) ∪ (y ∩ c⊥ ))⊥ ∩
c) ∪ (((x ∩ c⊥ ) ∪ (y ∩ c⊥ ))⊥ ∩
c⊥
)) ⇒ ((x ∪ y)
∩ c⊥ ) = ((x ∩ c⊥ ) ∪ (y ∩ c⊥ )) |
|
Theorem | k1-4 359 |
Statement (4) in proof of Theorem 1 of Kalmbach, Orthomodular
Lattices, p. 21. (Contributed by NM, 27-May-2008.)
|
(x⊥ ∩ (x ∪ c⊥ )) = (((x⊥ ∩ (x ∪ c⊥ )) ∩ c) ∪ ((x⊥ ∩ (x ∪ c⊥ )) ∩ c⊥ )) & x ≤ c ⇒ (x ∪ (x⊥ ∩ c)) = c |
|
Theorem | k1-5 360 |
Statement (5) in proof of Theorem 1 of Kalmbach, Orthomodular
Lattices, p. 21. (Contributed by NM, 27-May-2008.)
|
(x⊥ ∩ (x ∪ c)) =
(((x⊥ ∩ (x ∪ c))
∩ c) ∪ ((x⊥ ∩ (x ∪ c))
∩ c⊥ )) & x ≤ c⊥ ⇒ (x ∪ (x⊥ ∩ c⊥ )) = c⊥ |
|
0.2 Weakly orthomodular
lattices
|
|
0.2.1 Weak orthomodular law
|
|
Axiom | ax-wom 361 |
2-variable WOML rule. (Contributed by NM, 13-Nov-1998.)
|
(a⊥ ∪ (a ∩ b)) =
1 ⇒ (b ∪ (a⊥ ∩ b⊥ )) = 1 |
|
Theorem | 2vwomr2 362 |
2-variable WOML rule. (Contributed by NM, 13-Nov-1998.)
|
(b ∪ (a⊥ ∩ b⊥ )) = 1
⇒ (a⊥ ∪ (a ∩ b)) =
1 |
|
Theorem | 2vwomr1a 363 |
2-variable WOML rule. (Contributed by NM, 13-Nov-1998.)
|
(a →1 b) = 1 ⇒ (a →2 b) = 1 |
|
Theorem | 2vwomr2a 364 |
2-variable WOML rule. (Contributed by NM, 13-Nov-1998.)
|
(a →2 b) = 1 ⇒ (a →1 b) = 1 |
|
Theorem | 2vwomlem 365 |
Lemma from 2-variable WOML rule. (Contributed by NM, 13-Nov-1998.)
|
(a →2 b) = 1
& (b
→2 a) =
1 ⇒ (a ≡ b) =
1 |
|
Theorem | wr5-2v 366 |
WOML derived from 2-variable axioms. (Contributed by NM,
11-Nov-1998.)
|
(a ≡ b) =
1 ⇒ ((a ∪ c)
≡ (b ∪ c)) = 1 |
|
0.2.2 Weakly orthomodular lattices
|
|
Theorem | wom3 367 |
Weak orthomodular law for study of weakly orthomodular lattices.
(Contributed by NM, 13-Nov-1998.)
|
(a ≡ b) =
1 ⇒ a ≤ ((a
∪ c) ≡ (b ∪ c)) |
|
Theorem | wlor 368 |
Weak orthomodular law. (Contributed by NM, 24-Sep-1997.)
|
(a ≡ b) =
1 ⇒ ((c ∪ a)
≡ (c ∪ b)) = 1 |
|
Theorem | wran 369 |
Weak orthomodular law. (Contributed by NM, 24-Sep-1997.)
|
(a ≡ b) =
1 ⇒ ((a ∩ c)
≡ (b ∩ c)) = 1 |
|
Theorem | wlan 370 |
Weak orthomodular law. (Contributed by NM, 24-Sep-1997.)
|
(a ≡ b) =
1 ⇒ ((c ∩ a)
≡ (c ∩ b)) = 1 |
|
Theorem | wr2 371 |
Inference rule of AUQL. (Contributed by NM, 24-Sep-1997.)
|
(a ≡ b) =
1 & (b ≡ c) = 1 ⇒ (a ≡ c) =
1 |
|
Theorem | w2or 372 |
Join both sides with disjunction. (Contributed by NM, 13-Oct-1997.)
|
(a ≡ b) =
1 & (c ≡ d) = 1 ⇒ ((a ∪ c)
≡ (b ∪ d)) = 1 |
|
Theorem | w2an 373 |
Join both sides with conjunction. (Contributed by NM, 13-Oct-1997.)
|
(a ≡ b) =
1 & (c ≡ d) = 1 ⇒ ((a ∩ c)
≡ (b ∩ d)) = 1 |
|
Theorem | w3tr1 374 |
Transitive inference useful for introducing definitions. (Contributed
by NM, 13-Oct-1997.)
|
(a ≡ b) =
1 & (c ≡ a) = 1
& (d
≡ b) = 1
⇒ (c ≡ d) =
1 |
|
Theorem | w3tr2 375 |
Transitive inference useful for eliminating definitions. (Contributed
by NM, 13-Oct-1997.)
|
(a ≡ b) =
1 & (a ≡ c) = 1
& (b
≡ d) = 1
⇒ (c ≡ d) =
1 |
|
0.2.3 Relationship analogues (ordering;
commutation) in WOML
|
|
Theorem | wleoa 376 |
Relation between two methods of expressing "less than or equal to".
(Contributed by NM, 27-Sep-1997.)
|
((a ∪ c)
≡ b) = 1
⇒ ((a ∩ b)
≡ a) = 1 |
|
Theorem | wleao 377 |
Relation between two methods of expressing "less than or equal to".
(Contributed by NM, 27-Sep-1997.)
|
((c ∩ b)
≡ a) = 1
⇒ ((a ∪ b)
≡ b) = 1 |
|
Theorem | wdf-le1 378 |
Define "less than or equal to" analogue for ≡
analogue of =.
(Contributed by NM, 27-Sep-1997.)
|
((a ∪ b)
≡ b) = 1
⇒ (a ≤2 b) = 1 |
|
Theorem | wdf-le2 379 |
Define "less than or equal to" analogue for ≡
analogue of =.
(Contributed by NM, 27-Sep-1997.)
|
(a ≤2 b) = 1 ⇒ ((a ∪ b)
≡ b) = 1 |
|
Theorem | wom4 380 |
Orthomodular law. Kalmbach 83 p. 22. (Contributed by NM,
13-Oct-1997.)
|
(a ≤2 b) = 1 ⇒ ((a ∪ (a⊥ ∩ b)) ≡ b)
= 1 |
|
Theorem | wom5 381 |
Orthomodular law. Kalmbach 83 p. 22. (Contributed by NM,
13-Oct-1997.)
|
(a ≤2 b) = 1
& ((b
∩ a⊥ ) ≡ 0) =
1 ⇒ (a ≡ b) =
1 |
|
Theorem | wcomlem 382 |
Analogue of commutation is symmetric. Similar to Kalmbach 83 p. 22.
(Contributed by NM, 27-Jan-2002.)
|
(a ≡ ((a
∩ b) ∪ (a ∩ b⊥ ))) =
1 ⇒ (b ≡ ((b
∩ a) ∪ (b ∩ a⊥ ))) = 1 |
|
Theorem | wdf-c1 383 |
Show that commutator is a 'commutes' analogue for ≡
analogue of
=. (Contributed by NM, 27-Jan-2002.)
|
(a ≡ ((a
∩ b) ∪ (a ∩ b⊥ ))) =
1 ⇒ C (a, b) =
1 |
|
Theorem | wdf-c2 384 |
Show that commutator is a 'commutes' analogue for ≡
analogue of
=. (Contributed by NM, 27-Jan-2002.)
|
C (a, b) =
1 ⇒ (a ≡ ((a
∩ b) ∪ (a ∩ b⊥ ))) = 1 |
|
Theorem | wdf2le1 385 |
Alternate definition of "less than or equal to". (Contributed by NM,
27-Sep-1997.)
|
((a ∩ b)
≡ a) = 1
⇒ (a ≤2 b) = 1 |
|
Theorem | wdf2le2 386 |
Alternate definition of "less than or equal to". (Contributed by NM,
27-Sep-1997.)
|
(a ≤2 b) = 1 ⇒ ((a ∩ b)
≡ a) = 1 |
|
Theorem | wleo 387 |
L.e. absorption. (Contributed by NM, 27-Sep-1997.)
|
(a ≤2 (a ∪ b)) =
1 |
|
Theorem | wlea 388 |
L.e. absorption. (Contributed by NM, 27-Sep-1997.)
|
((a ∩ b)
≤2 a) = 1 |
|
Theorem | wle1 389 |
Anything is less than or equal to 1. (Contributed by NM, 27-Sep-1997.)
|
(a ≤2 1) = 1 |
|
Theorem | wle0 390 |
0 is less than or equal to anything. (Contributed by NM, 11-Oct-1997.)
|
(0 ≤2 a) = 1 |
|
Theorem | wler 391 |
Add disjunct to right of l.e. (Contributed by NM, 13-Oct-1997.)
|
(a ≤2 b) = 1 ⇒ (a ≤2 (b ∪ c)) =
1 |
|
Theorem | wlel 392 |
Add conjunct to left of l.e. (Contributed by NM, 13-Oct-1997.)
|
(a ≤2 b) = 1 ⇒ ((a ∩ c)
≤2 b) = 1 |
|
Theorem | wleror 393 |
Add disjunct to right of both sides. (Contributed by NM,
13-Oct-1997.)
|
(a ≤2 b) = 1 ⇒ ((a ∪ c)
≤2 (b ∪ c)) = 1 |
|
Theorem | wleran 394 |
Add conjunct to right of both sides. (Contributed by NM,
13-Oct-1997.)
|
(a ≤2 b) = 1 ⇒ ((a ∩ c)
≤2 (b ∩ c)) = 1 |
|
Theorem | wlecon 395 |
Contrapositive for l.e. (Contributed by NM, 13-Oct-1997.)
|
(a ≤2 b) = 1 ⇒ (b⊥ ≤2 a⊥ ) = 1 |
|
Theorem | wletr 396 |
Transitive law for l.e. (Contributed by NM, 13-Oct-1997.)
|
(a ≤2 b) = 1
& (b
≤2 c) =
1 ⇒ (a ≤2 c) = 1 |
|
Theorem | wbltr 397 |
Transitive inference. (Contributed by NM, 13-Oct-1997.)
|
(a ≡ b) =
1 & (b ≤2 c) = 1 ⇒ (a ≤2 c) = 1 |
|
Theorem | wlbtr 398 |
Transitive inference. (Contributed by NM, 13-Oct-1997.)
|
(a ≤2 b) = 1
& (b
≡ c) = 1
⇒ (a ≤2 c) = 1 |
|
Theorem | wle3tr1 399 |
Transitive inference useful for introducing definitions. (Contributed
by NM, 13-Oct-1997.)
|
(a ≤2 b) = 1
& (c
≡ a) = 1 & (d ≡ b) =
1 ⇒ (c ≤2 d) = 1 |
|
Theorem | wle3tr2 400 |
Transitive inference useful for eliminating definitions. (Contributed
by NM, 13-Oct-1997.)
|
(a ≤2 b) = 1
& (a
≡ c) = 1 & (b ≡ d) =
1 ⇒ (c ≤2 d) = 1 |