| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > omex | Unicode version | ||
| Description: The existence of omega (the class of natural numbers). Axiom 7 of [TakeutiZaring] p. 43. (Contributed by NM, 6-Aug-1994.) |
| Ref | Expression |
|---|---|
| omex |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | zfinf2 4693 |
. . 3
| |
| 2 | intexabim 4247 |
. . 3
| |
| 3 | 1, 2 | ax-mp 5 |
. 2
|
| 4 | dfom3 4696 |
. . 3
| |
| 5 | 4 | eleq1i 2297 |
. 2
|
| 6 | 3, 5 | mpbir 146 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2213 ax-sep 4212 ax-iinf 4692 |
| This theorem depends on definitions: df-bi 117 df-tru 1401 df-nf 1510 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-ral 2516 df-v 2805 df-in 3207 df-ss 3214 df-int 3934 df-iom 4695 |
| This theorem is referenced by: peano5 4702 omelon 4713 frecex 6603 frecabex 6607 fict 7098 infnfi 7127 ominf 7128 inffiexmid 7141 omp1eom 7354 difinfsn 7359 0ct 7366 ctmlemr 7367 ctssdclemn0 7369 ctssdclemr 7371 ctssdc 7372 enumct 7374 omct 7376 ctfoex 7377 nninfex 7380 infnninf 7383 infnninfOLD 7384 nnnninf 7385 exmidlpo 7402 nninfdcinf 7430 nninfwlporlem 7432 nninfwlpoimlemg 7434 nninfwlpoim 7438 nninfinfwlpo 7439 cc2lem 7545 acnccim 7551 niex 7592 enq0ex 7719 nq0ex 7720 uzenom 10750 frecfzennn 10751 nnenom 10759 fxnn0nninf 10764 0tonninf 10765 1tonninf 10766 inftonninf 10767 nninfinf 10768 hashinfuni 11102 hashinfom 11103 nninfctlemfo 12691 nninfct 12692 xpct 13097 ennnfonelemj0 13102 ennnfonelemg 13104 ennnfonelemen 13122 ctiunct 13141 omctfn 13144 ssomct 13146 bj-charfunbi 16527 subctctexmid 16722 0nninf 16730 nnsf 16731 peano4nninf 16732 peano3nninf 16733 nninfself 16739 nninfsellemeq 16740 nninfsellemeqinf 16742 sbthom 16754 |
| Copyright terms: Public domain | W3C validator |