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Type | Label | Description |
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Statement | ||
Theorem | iooneg 10001 | Membership in a negated open real interval. (Contributed by Paul Chapman, 26-Nov-2007.) |
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Theorem | iccneg 10002 | Membership in a negated closed real interval. (Contributed by Paul Chapman, 26-Nov-2007.) |
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Theorem | icoshft 10003 | A shifted real is a member of a shifted, closed-below, open-above real interval. (Contributed by Paul Chapman, 25-Mar-2008.) |
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Theorem | icoshftf1o 10004* | Shifting a closed-below, open-above interval is one-to-one onto. (Contributed by Paul Chapman, 25-Mar-2008.) (Proof shortened by Mario Carneiro, 1-Sep-2015.) |
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Theorem | icodisj 10005 | End-to-end closed-below, open-above real intervals are disjoint. (Contributed by Mario Carneiro, 16-Jun-2014.) |
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Theorem | ioodisj 10006 | If the upper bound of one open interval is less than or equal to the lower bound of the other, the intervals are disjoint. (Contributed by Jeff Hankins, 13-Jul-2009.) |
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Theorem | iccshftr 10007 | Membership in a shifted interval. (Contributed by Jeff Madsen, 2-Sep-2009.) |
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Theorem | iccshftri 10008 | Membership in a shifted interval. (Contributed by Jeff Madsen, 2-Sep-2009.) |
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Theorem | iccshftl 10009 | Membership in a shifted interval. (Contributed by Jeff Madsen, 2-Sep-2009.) |
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Theorem | iccshftli 10010 | Membership in a shifted interval. (Contributed by Jeff Madsen, 2-Sep-2009.) |
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Theorem | iccdil 10011 | Membership in a dilated interval. (Contributed by Jeff Madsen, 2-Sep-2009.) |
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Theorem | iccdili 10012 | Membership in a dilated interval. (Contributed by Jeff Madsen, 2-Sep-2009.) |
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Theorem | icccntr 10013 | Membership in a contracted interval. (Contributed by Jeff Madsen, 2-Sep-2009.) |
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Theorem | icccntri 10014 | Membership in a contracted interval. (Contributed by Jeff Madsen, 2-Sep-2009.) |
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Theorem | divelunit 10015 | A condition for a ratio to be a member of the closed unit. (Contributed by Scott Fenton, 11-Jun-2013.) |
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Theorem | lincmb01cmp 10016 | A linear combination of two reals which lies in the interval between them. (Contributed by Jeff Madsen, 2-Sep-2009.) (Proof shortened by Mario Carneiro, 8-Sep-2015.) |
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Theorem | iccf1o 10017* |
Describe a bijection from ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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Theorem | unitssre 10018 |
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Theorem | iccen 10019 | Any nontrivial closed interval is equinumerous to the unit interval. (Contributed by Mario Carneiro, 26-Jul-2014.) (Revised by Mario Carneiro, 8-Sep-2015.) |
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Theorem | zltaddlt1le 10020 | The sum of an integer and a real number between 0 and 1 is less than or equal to a second integer iff the sum is less than the second integer. (Contributed by AV, 1-Jul-2021.) |
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Syntax | cfz 10021 |
Extend class notation to include the notation for a contiguous finite set
of integers. Read "![]() ![]() ![]() ![]() ![]()
This symbol is also used informally in some comments to denote an
ellipsis, e.g., |
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Definition | df-fz 10022* |
Define an operation that produces a finite set of sequential integers.
Read "![]() ![]() ![]() ![]() ![]() |
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Theorem | fzval 10023* |
The value of a finite set of sequential integers. E.g., ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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Theorem | fzval2 10024 | An alternate way of expressing a finite set of sequential integers. (Contributed by Mario Carneiro, 3-Nov-2013.) |
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Theorem | fzf 10025 | Establish the domain and codomain of the finite integer sequence function. (Contributed by Scott Fenton, 8-Aug-2013.) (Revised by Mario Carneiro, 16-Nov-2013.) |
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Theorem | elfz1 10026 | Membership in a finite set of sequential integers. (Contributed by NM, 21-Jul-2005.) |
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Theorem | elfz 10027 | Membership in a finite set of sequential integers. (Contributed by NM, 29-Sep-2005.) |
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Theorem | elfz2 10028 |
Membership in a finite set of sequential integers. We use the fact that
an operation's value is empty outside of its domain to show ![]() ![]() ![]() ![]() ![]() ![]() |
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Theorem | elfzd 10029 | Membership in a finite set of sequential integers. (Contributed by Glauco Siliprandi, 23-Oct-2021.) |
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Theorem | elfz5 10030 | Membership in a finite set of sequential integers. (Contributed by NM, 26-Dec-2005.) |
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Theorem | elfz4 10031 | Membership in a finite set of sequential integers. (Contributed by NM, 21-Jul-2005.) (Revised by Mario Carneiro, 28-Apr-2015.) |
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Theorem | elfzuzb 10032 | Membership in a finite set of sequential integers in terms of sets of upper integers. (Contributed by NM, 18-Sep-2005.) (Revised by Mario Carneiro, 28-Apr-2015.) |
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Theorem | eluzfz 10033 | Membership in a finite set of sequential integers. (Contributed by NM, 4-Oct-2005.) (Revised by Mario Carneiro, 28-Apr-2015.) |
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Theorem | elfzuz 10034 | A member of a finite set of sequential integers belongs to an upper set of integers. (Contributed by NM, 17-Sep-2005.) (Revised by Mario Carneiro, 28-Apr-2015.) |
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Theorem | elfzuz3 10035 | Membership in a finite set of sequential integers implies membership in an upper set of integers. (Contributed by NM, 28-Sep-2005.) (Revised by Mario Carneiro, 28-Apr-2015.) |
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Theorem | elfzel2 10036 | Membership in a finite set of sequential integer implies the upper bound is an integer. (Contributed by NM, 6-Sep-2005.) (Revised by Mario Carneiro, 28-Apr-2015.) |
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Theorem | elfzel1 10037 | Membership in a finite set of sequential integer implies the lower bound is an integer. (Contributed by NM, 6-Sep-2005.) (Revised by Mario Carneiro, 28-Apr-2015.) |
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Theorem | elfzelz 10038 | A member of a finite set of sequential integer is an integer. (Contributed by NM, 6-Sep-2005.) (Revised by Mario Carneiro, 28-Apr-2015.) |
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Theorem | elfzelzd 10039 | A member of a finite set of sequential integers is an integer. (Contributed by Glauco Siliprandi, 5-Apr-2020.) |
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Theorem | elfzle1 10040 | A member of a finite set of sequential integer is greater than or equal to the lower bound. (Contributed by NM, 6-Sep-2005.) (Revised by Mario Carneiro, 28-Apr-2015.) |
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Theorem | elfzle2 10041 | A member of a finite set of sequential integer is less than or equal to the upper bound. (Contributed by NM, 6-Sep-2005.) (Revised by Mario Carneiro, 28-Apr-2015.) |
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Theorem | elfzuz2 10042 | Implication of membership in a finite set of sequential integers. (Contributed by NM, 20-Sep-2005.) (Revised by Mario Carneiro, 28-Apr-2015.) |
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Theorem | elfzle3 10043 | Membership in a finite set of sequential integer implies the bounds are comparable. (Contributed by NM, 18-Sep-2005.) (Revised by Mario Carneiro, 28-Apr-2015.) |
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Theorem | eluzfz1 10044 | Membership in a finite set of sequential integers - special case. (Contributed by NM, 21-Jul-2005.) (Revised by Mario Carneiro, 28-Apr-2015.) |
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Theorem | eluzfz2 10045 | Membership in a finite set of sequential integers - special case. (Contributed by NM, 13-Sep-2005.) (Revised by Mario Carneiro, 28-Apr-2015.) |
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Theorem | eluzfz2b 10046 | Membership in a finite set of sequential integers - special case. (Contributed by NM, 14-Sep-2005.) |
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Theorem | elfz3 10047 | Membership in a finite set of sequential integers containing one integer. (Contributed by NM, 21-Jul-2005.) |
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Theorem | elfz1eq 10048 | Membership in a finite set of sequential integers containing one integer. (Contributed by NM, 19-Sep-2005.) |
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Theorem | elfzubelfz 10049 | If there is a member in a finite set of sequential integers, the upper bound is also a member of this finite set of sequential integers. (Contributed by Alexander van der Vekens, 31-May-2018.) |
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Theorem | peano2fzr 10050 | A Peano-postulate-like theorem for downward closure of a finite set of sequential integers. (Contributed by Mario Carneiro, 27-May-2014.) |
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Theorem | fzm 10051* | Properties of a finite interval of integers which is inhabited. (Contributed by Jim Kingdon, 15-Apr-2020.) |
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Theorem | fztri3or 10052 | Trichotomy in terms of a finite interval of integers. (Contributed by Jim Kingdon, 1-Jun-2020.) |
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Theorem | fzdcel 10053 | Decidability of membership in a finite interval of integers. (Contributed by Jim Kingdon, 1-Jun-2020.) |
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Theorem | fznlem 10054 | A finite set of sequential integers is empty if the bounds are reversed. (Contributed by Jim Kingdon, 16-Apr-2020.) |
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Theorem | fzn 10055 | A finite set of sequential integers is empty if the bounds are reversed. (Contributed by NM, 22-Aug-2005.) |
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Theorem | fzen 10056 | A shifted finite set of sequential integers is equinumerous to the original set. (Contributed by Paul Chapman, 11-Apr-2009.) |
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Theorem | fz1n 10057 |
A 1-based finite set of sequential integers is empty iff it ends at index
![]() |
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Theorem | 0fz1 10058 | Two ways to say a finite 1-based sequence is empty. (Contributed by Paul Chapman, 26-Oct-2012.) |
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Theorem | fz10 10059 | There are no integers between 1 and 0. (Contributed by Jeff Madsen, 16-Jun-2010.) (Proof shortened by Mario Carneiro, 28-Apr-2015.) |
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Theorem | uzsubsubfz 10060 | Membership of an integer greater than L decreased by ( L - M ) in an M based finite set of sequential integers. (Contributed by Alexander van der Vekens, 14-Sep-2018.) |
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Theorem | uzsubsubfz1 10061 | Membership of an integer greater than L decreased by ( L - 1 ) in a 1 based finite set of sequential integers. (Contributed by Alexander van der Vekens, 14-Sep-2018.) |
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Theorem | ige3m2fz 10062 | Membership of an integer greater than 2 decreased by 2 in a 1 based finite set of sequential integers. (Contributed by Alexander van der Vekens, 14-Sep-2018.) |
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Theorem | fzsplit2 10063 | Split a finite interval of integers into two parts. (Contributed by Mario Carneiro, 13-Apr-2016.) |
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Theorem | fzsplit 10064 | Split a finite interval of integers into two parts. (Contributed by Jeff Madsen, 17-Jun-2010.) (Revised by Mario Carneiro, 13-Apr-2016.) |
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Theorem | fzdisj 10065 | Condition for two finite intervals of integers to be disjoint. (Contributed by Jeff Madsen, 17-Jun-2010.) |
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Theorem | fz01en 10066 | 0-based and 1-based finite sets of sequential integers are equinumerous. (Contributed by Paul Chapman, 11-Apr-2009.) |
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Theorem | elfznn 10067 | A member of a finite set of sequential integers starting at 1 is a positive integer. (Contributed by NM, 24-Aug-2005.) |
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Theorem | elfz1end 10068 | A nonempty finite range of integers contains its end point. (Contributed by Stefan O'Rear, 10-Oct-2014.) |
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Theorem | fz1ssnn 10069 | A finite set of positive integers is a set of positive integers. (Contributed by Stefan O'Rear, 16-Oct-2014.) |
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Theorem | fznn0sub 10070 | Subtraction closure for a member of a finite set of sequential integers. (Contributed by NM, 16-Sep-2005.) (Revised by Mario Carneiro, 28-Apr-2015.) |
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Theorem | fzmmmeqm 10071 | Subtracting the difference of a member of a finite range of integers and the lower bound of the range from the difference of the upper bound and the lower bound of the range results in the difference of the upper bound of the range and the member. (Contributed by Alexander van der Vekens, 27-May-2018.) |
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Theorem | fzaddel 10072 | Membership of a sum in a finite set of sequential integers. (Contributed by NM, 30-Jul-2005.) |
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Theorem | fzsubel 10073 | Membership of a difference in a finite set of sequential integers. (Contributed by NM, 30-Jul-2005.) |
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Theorem | fzopth 10074 | A finite set of sequential integers can represent an ordered pair. (Contributed by NM, 31-Oct-2005.) (Revised by Mario Carneiro, 28-Apr-2015.) |
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Theorem | fzass4 10075 | Two ways to express a nondecreasing sequence of four integers. (Contributed by Stefan O'Rear, 15-Aug-2015.) |
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Theorem | fzss1 10076 | Subset relationship for finite sets of sequential integers. (Contributed by NM, 28-Sep-2005.) (Proof shortened by Mario Carneiro, 28-Apr-2015.) |
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Theorem | fzss2 10077 | Subset relationship for finite sets of sequential integers. (Contributed by NM, 4-Oct-2005.) (Revised by Mario Carneiro, 30-Apr-2015.) |
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Theorem | fzssuz 10078 | A finite set of sequential integers is a subset of an upper set of integers. (Contributed by NM, 28-Oct-2005.) |
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Theorem | fzsn 10079 | A finite interval of integers with one element. (Contributed by Jeff Madsen, 2-Sep-2009.) |
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Theorem | fzssp1 10080 | Subset relationship for finite sets of sequential integers. (Contributed by NM, 21-Jul-2005.) (Revised by Mario Carneiro, 28-Apr-2015.) |
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Theorem | fzssnn 10081 | Finite sets of sequential integers starting from a natural are a subset of the positive integers. (Contributed by Thierry Arnoux, 4-Aug-2017.) |
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Theorem | fzsuc 10082 | Join a successor to the end of a finite set of sequential integers. (Contributed by NM, 19-Jul-2008.) (Revised by Mario Carneiro, 28-Apr-2015.) |
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Theorem | fzpred 10083 | Join a predecessor to the beginning of a finite set of sequential integers. (Contributed by AV, 24-Aug-2019.) |
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Theorem | fzpreddisj 10084 | A finite set of sequential integers is disjoint with its predecessor. (Contributed by AV, 24-Aug-2019.) |
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Theorem | elfzp1 10085 | Append an element to a finite set of sequential integers. (Contributed by NM, 19-Sep-2005.) (Proof shortened by Mario Carneiro, 28-Apr-2015.) |
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Theorem | fzp1ss 10086 | Subset relationship for finite sets of sequential integers. (Contributed by NM, 26-Jul-2005.) (Revised by Mario Carneiro, 28-Apr-2015.) |
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Theorem | fzelp1 10087 | Membership in a set of sequential integers with an appended element. (Contributed by NM, 7-Dec-2005.) (Revised by Mario Carneiro, 28-Apr-2015.) |
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Theorem | fzp1elp1 10088 | Add one to an element of a finite set of integers. (Contributed by Jeff Madsen, 6-Jun-2010.) (Revised by Mario Carneiro, 28-Apr-2015.) |
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Theorem | fznatpl1 10089 | Shift membership in a finite sequence of naturals. (Contributed by Scott Fenton, 17-Jul-2013.) |
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Theorem | fzpr 10090 | A finite interval of integers with two elements. (Contributed by Jeff Madsen, 2-Sep-2009.) |
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Theorem | fztp 10091 | A finite interval of integers with three elements. (Contributed by NM, 13-Sep-2011.) (Revised by Mario Carneiro, 7-Mar-2014.) |
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Theorem | fzsuc2 10092 | Join a successor to the end of a finite set of sequential integers. (Contributed by Mario Carneiro, 7-Mar-2014.) |
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Theorem | fzp1disj 10093 |
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Theorem | fzdifsuc 10094 | Remove a successor from the end of a finite set of sequential integers. (Contributed by AV, 4-Sep-2019.) |
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Theorem | fzprval 10095* |
Two ways of defining the first two values of a sequence on ![]() |
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Theorem | fztpval 10096* |
Two ways of defining the first three values of a sequence on ![]() |
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Theorem | fzrev 10097 | Reversal of start and end of a finite set of sequential integers. (Contributed by NM, 25-Nov-2005.) |
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Theorem | fzrev2 10098 | Reversal of start and end of a finite set of sequential integers. (Contributed by NM, 25-Nov-2005.) |
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Theorem | fzrev2i 10099 | Reversal of start and end of a finite set of sequential integers. (Contributed by NM, 25-Nov-2005.) |
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Theorem | fzrev3 10100 | The "complement" of a member of a finite set of sequential integers. (Contributed by NM, 20-Nov-2005.) |
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